diff --git a/dogether/Data/DataSources/ChallengeGroupsDataSource.swift b/dogether/Data/DataSources/ChallengeGroupsDataSource.swift
index ffbb43b0..5facb687 100644
--- a/dogether/Data/DataSources/ChallengeGroupsDataSource.swift
+++ b/dogether/Data/DataSources/ChallengeGroupsDataSource.swift
@@ -17,18 +17,18 @@ final class ChallengeGroupsDataSource {
     }
     
     func getMemberTodos(groupId: String, memberId: String) async throws -> GetMemberTodosResponse {
-        try await NetworkManager.shared.request(ChallengeGroupsRouter.getMemberTodos(groupId: groupId, memberId: memberId))
+        try await NetworkManager.shared.request(
+            ChallengeGroupsRouter.getMemberTodos(groupId: groupId, memberId: memberId)
+        )
     }
     
     func createTodos(groupId: String, createTodosRequest: CreateTodosRequest) async throws {
-        try await NetworkManager.shared.request(ChallengeGroupsRouter.createTodos(groupId: groupId, createTodosRequest: createTodosRequest))
+        try await NetworkManager.shared.request(
+            ChallengeGroupsRouter.createTodos(groupId: groupId, createTodosRequest: createTodosRequest)
+        )
     }
     
-    func certifyTodo(todoId: String, certifyTodoRequest: CertifyTodoRequest) async throws {
-        try await NetworkManager.shared.request(ChallengeGroupsRouter.certifyTodo(todoId: todoId, certifyTodoRequest: certifyTodoRequest))
-    }
-    
-    func readTodo(todoId: String) async throws {
-        try await NetworkManager.shared.request(ChallengeGroupsRouter.readTodo(todoId: todoId))
+    func readTodo(todoHistoryId: String) async throws {
+        try await NetworkManager.shared.request(ChallengeGroupsRouter.readTodo(todoHistoryId: todoHistoryId))
     }
 }
diff --git a/dogether/Data/DataSources/TodosDataSource.swift b/dogether/Data/DataSources/TodosDataSource.swift
new file mode 100644
index 00000000..25e2c247
--- /dev/null
+++ b/dogether/Data/DataSources/TodosDataSource.swift
@@ -0,0 +1,26 @@
+//
+//  TodosDataSource.swift
+//  dogether
+//
+//  Created by seungyooooong on 1/3/26.
+//
+
+import Foundation
+
+final class TodosDataSource {
+    static let shared = TodosDataSource()
+    
+    private init() { }
+    
+    func certifyTodo(todoId: String, certifyTodoRequest: CertifyTodoRequest) async throws {
+        try await NetworkManager.shared.request(
+            TodosRouter.certifyTodo(todoId: todoId, certifyTodoRequest: certifyTodoRequest)
+        )
+    }
+    
+    func remindTodo(todoId: String, remindTodoRequest: RemindTodoRequest) async throws {
+        try await NetworkManager.shared.request(
+            TodosRouter.remindTodo(todoId: todoId, remindTodoRequest: remindTodoRequest)
+        )
+    }
+}
diff --git a/dogether/Data/DataSources/UserDataSource.swift b/dogether/Data/DataSources/UserDataSource.swift
index 138dec39..2a37f413 100644
--- a/dogether/Data/DataSources/UserDataSource.swift
+++ b/dogether/Data/DataSources/UserDataSource.swift
@@ -24,6 +24,11 @@ final class UserDataSource {
         try await NetworkManager.shared.request(UserRouter.getMyCertificationStats(groupId: groupId))
     }
 
+    
+    func getMyActivityFromTodo(todoId: Int, sort: String) async throws -> GetMyActivityFromTodoResponse {
+        try await NetworkManager.shared.request(UserRouter.getMyActivityFromTodo(todoId: todoId, sort: sort))
+    }
+    
     func getMyProfile() async throws -> GetMyProfileResponse {
         try await NetworkManager.shared.request(UserRouter.getMyProfile)
     }
diff --git a/dogether/Data/Network/Request/RemindTodoRequest.swift b/dogether/Data/Network/Request/RemindTodoRequest.swift
new file mode 100644
index 00000000..9422385c
--- /dev/null
+++ b/dogether/Data/Network/Request/RemindTodoRequest.swift
@@ -0,0 +1,12 @@
+//
+//  RemindTodoRequest.swift
+//  dogether
+//
+//  Created by seungyooooong on 1/3/26.
+//
+
+import Foundation
+
+struct RemindTodoRequest: Encodable {
+    let reminderType: String
+}
diff --git a/dogether/Data/Network/Response/GetMemberTodosResponse.swift b/dogether/Data/Network/Response/GetMemberTodosResponse.swift
index 7f5b9cab..25ca01af 100644
--- a/dogether/Data/Network/Response/GetMemberTodosResponse.swift
+++ b/dogether/Data/Network/Response/GetMemberTodosResponse.swift
@@ -8,31 +8,41 @@
 import Foundation
 
 struct GetMemberTodosResponse: Decodable {
+    let isMine: Bool
     let currentTodoHistoryToReadIndex: Int
-    let todos: [MemberTodo]
+    let todos: [TodoEntityInGetMemberTodos]
 }
 
-struct MemberTodo: Decodable {
-    let id: Int
+struct TodoEntityInGetMemberTodos: Decodable {
+    let historyId: Int
+    let todoId: Int
     let content: String
     let status: String
+    let canRequestCertification: Bool
+    let canRequestCertificationReview: Bool
     let certificationContent: String?
     let certificationMediaUrl: String?
     let isRead: Bool
     let reviewFeedback: String?
     
     init(
-        id: Int,
+        historyId: Int,
+        todoId: Int,
         content: String,
         status: String,
+        canRequestCertification: Bool,
+        canRequestCertificationReview: Bool,
         certificationContent: String? = nil,
         certificationMediaUrl: String? = nil,
         isRead: Bool,
         reviewFeedback: String? = nil
     ) {
-        self.id = id
+        self.historyId = historyId
+        self.todoId = todoId
         self.content = content
         self.status = status
+        self.canRequestCertification = canRequestCertification
+        self.canRequestCertificationReview = canRequestCertificationReview
         self.certificationContent = certificationContent
         self.certificationMediaUrl = certificationMediaUrl
         self.isRead = isRead
diff --git a/dogether/Data/Network/Response/GetMyActivityFromTodoResponse.swift b/dogether/Data/Network/Response/GetMyActivityFromTodoResponse.swift
new file mode 100644
index 00000000..6e0c35d7
--- /dev/null
+++ b/dogether/Data/Network/Response/GetMyActivityFromTodoResponse.swift
@@ -0,0 +1,23 @@
+//
+//  GetMyActivityFromTodoResponse.swift
+//  dogether
+//
+//  Created by seungyooooong on 1/20/26.
+//
+
+import Foundation
+
+struct GetMyActivityFromTodoResponse: Decodable {
+    let certifications: [CertificationEntityInGetMyActivityFromTodoResponse]
+}
+
+
+struct CertificationEntityInGetMyActivityFromTodoResponse: Decodable {
+    let id: Int
+    let content: String
+    var status: String
+    var canRequestCertificationReview: Bool
+    var certificationContent: String
+    var certificationMediaUrl: String
+    var reviewFeedback: String?
+}
diff --git a/dogether/Data/Network/Response/GetMyTodosResponse.swift b/dogether/Data/Network/Response/GetMyTodosResponse.swift
index d3dbed9e..439dc35b 100644
--- a/dogether/Data/Network/Response/GetMyTodosResponse.swift
+++ b/dogether/Data/Network/Response/GetMyTodosResponse.swift
@@ -15,6 +15,7 @@ struct TodoEntityInGetMyTodos: Decodable {
     let id: Int
     let content: String
     var status: String
+    var canRequestCertificationReview: Bool
     var certificationContent: String?
     var certificationMediaUrl: String?
     var reviewFeedback: String?
diff --git a/dogether/Data/Network/Router/ChallengeGroupsRouter.swift b/dogether/Data/Network/Router/ChallengeGroupsRouter.swift
index 6329310b..c50a3438 100644
--- a/dogether/Data/Network/Router/ChallengeGroupsRouter.swift
+++ b/dogether/Data/Network/Router/ChallengeGroupsRouter.swift
@@ -9,26 +9,23 @@ import Foundation
 
 enum ChallengeGroupsRouter: NetworkEndpoint {
     case createTodos(groupId: String, createTodosRequest: CreateTodosRequest)
-    case certifyTodo(todoId: String, certifyTodoRequest: CertifyTodoRequest)
     case getMyTodos(groupId: String, date: String)
     case getMyYesterdayTodos
     case getMemberTodos(groupId: String, memberId: String)
-    case readTodo(todoId: String)
+    case readTodo(todoHistoryId: String)
     
     var path: String {
         switch self {
         case .createTodos(let groupId, _):
             return Path.api + Path.v1 + Path.challengeGroups + "/\(groupId)/todos"
-        case .certifyTodo(let todoId, _):   // FIXME: 추후 TodosRouter 분리
-            return Path.api + Path.v1 + Path.todos + "/\(todoId)/certify"
         case .getMyTodos(let groupId, _):
-            return Path.api + Path.v1 + Path.challengeGroups + "/\(groupId)/my-todos"
+            return Path.api + Path.v2 + Path.challengeGroups + "/\(groupId)/my-todos"
         case .getMyYesterdayTodos:
             return Path.api + Path.v1 + Path.challengeGroups + "/my/yesterday"
         case .getMemberTodos(let groupId, let memberId):
-            return Path.api + Path.v1 + Path.challengeGroups + "/\(groupId)/challenge-group-members/\(memberId)/today-todo-history"
-        case .readTodo(let todoId): // FIXME: 추후 TodoHistoryRouter 분리
-            return Path.api + Path.v1 + Path.todoHistory + "/\(todoId)"
+            return Path.api + Path.v2 + Path.challengeGroups + "/\(groupId)/challenge-group-members/\(memberId)/today-todo-history"
+        case .readTodo(let todoHistoryId): // FIXME: 추후 TodoHistoryRouter 분리
+            return Path.api + Path.v1 + Path.todoHistory + "/\(todoHistoryId)"
         }
     }
     
@@ -36,7 +33,7 @@ enum ChallengeGroupsRouter: NetworkEndpoint {
         switch self {
         case .getMyTodos, .getMyYesterdayTodos, .getMemberTodos:
             return .get
-        case .createTodos, .certifyTodo, .readTodo:
+        case .createTodos, .readTodo:
             return .post
         }
     }
@@ -64,8 +61,6 @@ enum ChallengeGroupsRouter: NetworkEndpoint {
         switch self {
         case .createTodos(_, let createTodosRequest):
             return createTodosRequest
-        case .certifyTodo(_, let certifyTodoRequest):
-            return certifyTodoRequest
         default:
             return nil
         }
diff --git a/dogether/Data/Network/Router/TodosRouter.swift b/dogether/Data/Network/Router/TodosRouter.swift
new file mode 100644
index 00000000..f027bbcf
--- /dev/null
+++ b/dogether/Data/Network/Router/TodosRouter.swift
@@ -0,0 +1,55 @@
+//
+//  TodosRouter.swift
+//  dogether
+//
+//  Created by seungyooooong on 1/2/26.
+//
+
+import Foundation
+
+enum TodosRouter: NetworkEndpoint {
+    case certifyTodo(todoId: String, certifyTodoRequest: CertifyTodoRequest)
+    case remindTodo(todoId: String, remindTodoRequest: RemindTodoRequest)
+    
+    var path: String {
+        switch self {
+        case .certifyTodo(let todoId, _):
+            return Path.api + Path.v1 + Path.todos + "/\(todoId)/certify"
+        case .remindTodo(let todoId, _):
+            return Path.api + Path.v1 + Path.todos + "/\(todoId)/reminders"
+        }
+    }
+    
+    var method: NetworkMethod {
+        switch self {
+        case .certifyTodo, .remindTodo:
+            return .post
+        }
+    }
+    
+    var parameters: [URLQueryItem]? {
+        switch self {
+        default:
+            return nil
+        }
+    }
+    
+    var header: [String : String]? {
+        switch self {
+        default:
+            return [
+                Header.Key.contentType: Header.Value.applicationJson,
+                Header.Key.authorization: Header.Value.bearer + (UserDefaultsManager.shared.accessToken ?? "")
+            ]
+        }
+    }
+    
+    var body: (any Encodable)? {
+        switch self {
+        case .certifyTodo(_, let certifyTodoRequest):
+            return certifyTodoRequest
+        case .remindTodo(_, let remindTodoRequest):
+            return remindTodoRequest
+        }
+    }
+}
diff --git a/dogether/Data/Network/Router/UserRouter.swift b/dogether/Data/Network/Router/UserRouter.swift
index 564ddab6..18cb9470 100644
--- a/dogether/Data/Network/Router/UserRouter.swift
+++ b/dogether/Data/Network/Router/UserRouter.swift
@@ -11,6 +11,7 @@ enum UserRouter: NetworkEndpoint {
     case getMyGroupActivity(groupId: Int)
     case getMyActivity(sort: String, page: String)
     case getMyCertificationStats(groupId: Int?)
+    case getMyActivityFromTodo(todoId: Int, sort: String)
     case getMyProfile
 
     var path: String {
@@ -21,6 +22,8 @@ enum UserRouter: NetworkEndpoint {
             return Path.api + Path.v2 + Path.my + "/certifications"
         case .getMyCertificationStats:
             return Path.api + Path.v2 + Path.my + "/certification-stats"
+        case .getMyActivityFromTodo(let todoId, _):
+            return Path.api + Path.v1 + Path.my + "/activity" + "/todos/\(todoId)" + "/group-certifications"
         case .getMyProfile:
             return Path.api + Path.v1 + Path.my + "/profile"
         }
@@ -28,7 +31,7 @@ enum UserRouter: NetworkEndpoint {
     
     var method: NetworkMethod {
         switch self {
-        case .getMyGroupActivity, .getMyActivity, .getMyCertificationStats, .getMyProfile:
+        case .getMyGroupActivity, .getMyActivity, .getMyCertificationStats, .getMyActivityFromTodo, .getMyProfile:
             return .get
         }
     }
@@ -45,6 +48,10 @@ enum UserRouter: NetworkEndpoint {
             return [
                 .init(name: "groupId", value: String(groupId))
             ]
+        case let.getMyActivityFromTodo(_, sort):
+            return [
+                .init(name: "sortBy", value: sort)
+            ]
         default:
             return nil
         }
diff --git a/dogether/Data/Repository/ChallengeGroupsRepository.swift b/dogether/Data/Repository/ChallengeGroupsRepository.swift
index 56ac1c9f..ee2911f5 100644
--- a/dogether/Data/Repository/ChallengeGroupsRepository.swift
+++ b/dogether/Data/Repository/ChallengeGroupsRepository.swift
@@ -25,6 +25,7 @@ final class ChallengeGroupsRepository: ChallengeGroupsProtocol {
                 id: $0.id,
                 content: $0.content,
                 status: TodoStatus(rawValue: $0.status) ?? .waitCertification,
+                canRemindReview: $0.canRequestCertificationReview,
                 certificationContent: $0.certificationContent,
                 certificationMediaUrl: $0.certificationMediaUrl,
                 reviewFeedback: $0.reviewFeedback
@@ -32,31 +33,33 @@ final class ChallengeGroupsRepository: ChallengeGroupsProtocol {
         }
     }
     
-    func getMemberTodos(groupId: Int, memberId: Int) async throws -> (index: Int, todos: [TodoEntity]) {
+    func getMemberTodos(groupId: Int, memberId: Int) async throws -> (index: Int, isMine: Bool, todos: [TodoEntity]) {
         let response = try await challengeGroupsDataSource.getMemberTodos(
             groupId: String(groupId), memberId: String(memberId)
         )
         
+        if response.todos.isEmpty { throw NetworkError.noData }
+        
         let currentIndex = response.currentTodoHistoryToReadIndex
+        let isMine = response.isMine
         let memberTodos = response.todos.map {
             TodoEntity(
-                id: $0.id,
+                historyId: $0.historyId,
+                id: $0.todoId,
                 content: $0.content,
                 status: TodoStatus(rawValue: $0.status) ?? .waitCertification,
                 thumbnailStatus: $0.isRead ? .done : .yet,
+                canRemindCertification: $0.canRequestCertification,
+                canRemindReview: $0.canRequestCertificationReview,
                 certificationContent: $0.certificationContent,
                 certificationMediaUrl: $0.certificationMediaUrl,
                 reviewFeedback: $0.reviewFeedback
             )
         }
-        return (currentIndex, memberTodos)
-    }
-    
-    func readTodo(todoId: String) async throws {
-        try await challengeGroupsDataSource.readTodo(todoId: todoId)
+        return (currentIndex, isMine, memberTodos)
     }
     
-    func certifyTodo(todoId: String, certifyTodoRequest: CertifyTodoRequest) async throws {
-        try await challengeGroupsDataSource.certifyTodo(todoId: todoId, certifyTodoRequest: certifyTodoRequest)
+    func readTodo(todoHistoryId: String) async throws {
+        try await challengeGroupsDataSource.readTodo(todoHistoryId: todoHistoryId)
     }
 }
diff --git a/dogether/Data/Repository/TodosRepository.swift b/dogether/Data/Repository/TodosRepository.swift
new file mode 100644
index 00000000..d08b53c5
--- /dev/null
+++ b/dogether/Data/Repository/TodosRepository.swift
@@ -0,0 +1,24 @@
+//
+//  TodosRepository.swift
+//  dogether
+//
+//  Created by seungyooooong on 1/3/26.
+//
+
+import Foundation
+
+final class TodosRepository: TodosProtocol {
+    private let todosDataSource: TodosDataSource
+    
+    init(todosDataSource: TodosDataSource = .shared) {
+        self.todosDataSource = todosDataSource
+    }
+    
+    func certifyTodo(todoId: String, certifyTodoRequest: CertifyTodoRequest) async throws {
+        try await todosDataSource.certifyTodo(todoId: todoId, certifyTodoRequest: certifyTodoRequest)
+    }
+    
+    func remindTodo(todoId: String, remindTodoRequest: RemindTodoRequest) async throws {
+        try await todosDataSource.remindTodo(todoId: todoId, remindTodoRequest: remindTodoRequest)
+    }
+}
diff --git a/dogether/Data/Repository/UserRepository.swift b/dogether/Data/Repository/UserRepository.swift
index ef20cb2c..4dea59db 100644
--- a/dogether/Data/Repository/UserRepository.swift
+++ b/dogether/Data/Repository/UserRepository.swift
@@ -92,6 +92,21 @@ final class UserRepository: UserProtocol {
         return (statsViewDatas, certificationListViewDatas)
     }
     
+    func getMyCertifications(todoId: Int, sortOption: SortOptions) async throws -> [TodoEntity] {
+        let response = try await userDataSource.getMyActivityFromTodo(todoId: todoId, sort: sortOption.sortString)
+        return response.certifications.map {
+            TodoEntity(
+                id: $0.id,
+                content: $0.content,
+                status: TodoStatus(rawValue: $0.status) ?? .waitCertification,
+                canRemindReview: $0.canRequestCertificationReview,
+                certificationContent: $0.certificationContent,
+                certificationMediaUrl: $0.certificationMediaUrl,
+                reviewFeedback: $0.reviewFeedback
+            )
+        }
+    }
+    
     func getProfileViewDatas() async throws -> ProfileViewDatas {
         let response = try await userDataSource.getMyProfile()
         return ProfileViewDatas(
diff --git a/dogether/Data/RepositoryTest/ChallengeGroupsRepositoryTest.swift b/dogether/Data/RepositoryTest/ChallengeGroupsRepositoryTest.swift
index 52fe8dd2..6f61689e 100644
--- a/dogether/Data/RepositoryTest/ChallengeGroupsRepositoryTest.swift
+++ b/dogether/Data/RepositoryTest/ChallengeGroupsRepositoryTest.swift
@@ -29,8 +29,8 @@ final class ChallengeGroupsRepositoryTest: ChallengeGroupsProtocol {
         return certify_pendings + review_pendings + approves + rejects
     }
     
-    func getMemberTodos(groupId: Int, memberId: Int) async throws -> (index: Int, todos: [TodoEntity]) {
-        return (index: 3, todos: [
+    func getMemberTodos(groupId: Int, memberId: Int) async throws -> (index: Int, isMine: Bool, todos: [TodoEntity]) {
+        return (index: 3, isMine: false, todos: [
             TodoEntity(id: 1, content: "신규 기능 개발", status: .waitCertification, thumbnailStatus: .done),
             TodoEntity(id: 2, content: "치킨 먹기", status: .waitCertification, thumbnailStatus: .done, certificationContent: "치킨 냠냠", reviewFeedback: ""),
             TodoEntity(id: 1, content: "신규 기능 개발", status: .waitCertification, thumbnailStatus: .done, reviewFeedback: "test"),
@@ -50,7 +50,5 @@ final class ChallengeGroupsRepositoryTest: ChallengeGroupsProtocol {
         ])
     }
     
-    func readTodo(todoId: String) async throws { }
-    
-    func certifyTodo(todoId: String, certifyTodoRequest: CertifyTodoRequest) async throws { }
+    func readTodo(todoHistoryId: String) async throws { }
 }
diff --git a/dogether/Data/RepositoryTest/TodosRepositoryTest.swift b/dogether/Data/RepositoryTest/TodosRepositoryTest.swift
new file mode 100644
index 00000000..4e321ae3
--- /dev/null
+++ b/dogether/Data/RepositoryTest/TodosRepositoryTest.swift
@@ -0,0 +1,14 @@
+//
+//  TodosRepositoryTest.swift
+//  dogether
+//
+//  Created by seungyooooong on 1/3/26.
+//
+
+import Foundation
+
+final class TodosRepositoryTest: TodosProtocol {
+    func certifyTodo(todoId: String, certifyTodoRequest: CertifyTodoRequest) async throws { }
+    
+    func remindTodo(todoId: String, remindTodoRequest: RemindTodoRequest) async throws { }
+}
diff --git a/dogether/Data/RepositoryTest/UserRepositoryTest.swift b/dogether/Data/RepositoryTest/UserRepositoryTest.swift
index 77dde783..838791fd 100644
--- a/dogether/Data/RepositoryTest/UserRepositoryTest.swift
+++ b/dogether/Data/RepositoryTest/UserRepositoryTest.swift
@@ -110,7 +110,11 @@ final class UserRepositoryTest: UserProtocol {
 
         return (statsViewDatas, certificationListViewDatas)
     }
-
+    
+    func getMyCertifications(todoId: Int, sortOption: SortOptions) async throws -> [TodoEntity] {
+        return []
+    }
+    
     func getProfileViewDatas() async throws -> ProfileViewDatas {
         return ProfileViewDatas(name: "두식", imageUrl: "")
     }
diff --git a/dogether/Domain/Entity/Enum/RemindTypes.swift b/dogether/Domain/Entity/Enum/RemindTypes.swift
new file mode 100644
index 00000000..b77fd5ff
--- /dev/null
+++ b/dogether/Domain/Entity/Enum/RemindTypes.swift
@@ -0,0 +1,13 @@
+//
+//  RemindTypes.swift
+//  dogether
+//
+//  Created by seungyooooong on 1/2/26.
+//
+
+import Foundation
+
+enum RemindTypes: String {
+    case certification = "TODO_CERTIFICATION"
+    case review = "TODO_CERTIFICATION_REVIEW"
+}
diff --git a/dogether/Presentation/Features/CertificationList/Components/CertificationSortOption.swift b/dogether/Domain/Entity/Enum/SortOptions.swift
similarity index 87%
rename from dogether/Presentation/Features/CertificationList/Components/CertificationSortOption.swift
rename to dogether/Domain/Entity/Enum/SortOptions.swift
index cf284543..e19371d9 100644
--- a/dogether/Presentation/Features/CertificationList/Components/CertificationSortOption.swift
+++ b/dogether/Domain/Entity/Enum/SortOptions.swift
@@ -1,8 +1,8 @@
 //
-//  CertificationSortOption.swift
+//  SortOptions.swift
 //  dogether
 //
-//  Created by yujaehong on 5/19/25.
+//  Created by seungyooooong on 1/19/26.
 //
 
 import Foundation
diff --git a/dogether/Domain/Entity/TodoEntity.swift b/dogether/Domain/Entity/TodoEntity.swift
index 0168f0bf..ccf1cd23 100644
--- a/dogether/Domain/Entity/TodoEntity.swift
+++ b/dogether/Domain/Entity/TodoEntity.swift
@@ -8,32 +8,49 @@
 import Foundation
 
 struct TodoEntity: BaseEntity {
+    let historyId: Int? // MARK: readTodo에서 사용
     let id: Int
     let content: String
     var status: TodoStatus
     var thumbnailStatus: ThumbnailStatus
+    var canRemindCertification: Bool
+    var canRemindReview: Bool
     var certificationContent: String?
     var certificationMediaUrl: String?
     var reviewFeedback: String?
     var createdAt: String?
     
     init(
+        historyId: Int? = nil,
         id: Int,
         content: String,
         status: TodoStatus,
         thumbnailStatus: ThumbnailStatus = .yet,
+        canRemindCertification: Bool = false,
+        canRemindReview: Bool = false,
         certificationContent: String? = nil,
         certificationMediaUrl: String? = nil,
         reviewFeedback: String? = nil,
         createdAt: String? = nil
     ) {
+        self.historyId = historyId
         self.id = id
         self.content = content
         self.status = status
         self.thumbnailStatus = thumbnailStatus
+        self.canRemindCertification = canRemindCertification
+        self.canRemindReview = canRemindReview
         self.certificationContent = certificationContent
         self.certificationMediaUrl = certificationMediaUrl
         self.reviewFeedback = reviewFeedback
         self.createdAt = createdAt
     }
 }
+
+extension TodoEntity {
+    func with(createdAt: String) -> Self {
+        var todo = self
+        todo.createdAt = createdAt
+        return todo
+    }
+}
diff --git a/dogether/Domain/Entity/ViewDatas/CertificationViewDatas.swift b/dogether/Domain/Entity/ViewDatas/CertificationViewDatas.swift
index 99b801ba..9e4fc797 100644
--- a/dogether/Domain/Entity/ViewDatas/CertificationViewDatas.swift
+++ b/dogether/Domain/Entity/ViewDatas/CertificationViewDatas.swift
@@ -9,22 +9,19 @@ import Foundation
 
 struct CertificationViewDatas: BaseEntity {
     var title: String
+    var isMine: Bool?
     var todos: [TodoEntity]
     var index: Int
-    var groupId: Int?
-    var rankingEntity: RankingEntity?
     
     init(
         title: String = "",
+        isMine: Bool? = nil,
         todos: [TodoEntity] = [],
         index: Int = 0,
-        groupId: Int? = nil,
-        rankingEntity: RankingEntity? = nil
     ) {
         self.title = title
+        self.isMine = isMine
         self.todos = todos
         self.index = index
-        self.groupId = groupId
-        self.rankingEntity = rankingEntity
     }
 }
diff --git a/dogether/Domain/Entity/ViewDatas/PreCertificationViewDatas.swift b/dogether/Domain/Entity/ViewDatas/PreCertificationViewDatas.swift
new file mode 100644
index 00000000..0534b8c0
--- /dev/null
+++ b/dogether/Domain/Entity/ViewDatas/PreCertificationViewDatas.swift
@@ -0,0 +1,14 @@
+//
+//  PreCertificationViewDatas.swift
+//  dogether
+//
+//  Created by seungyooooong on 1/19/26.
+//
+
+import Foundation
+
+enum PreCertificationViewDatas: BaseEntity {
+    case main(title: String, date: String, groupId: Int, todoId: Int, filter: FilterTypes)
+    case ranking(title: String, groupId: Int, memberId: Int)
+    case certificationList(title: String, todoId: Int, sortOption: SortOptions, filter: FilterTypes)
+}
diff --git a/dogether/Domain/Protocol/ChallengeGroupsProtocol.swift b/dogether/Domain/Protocol/ChallengeGroupsProtocol.swift
index 6a5787b2..b9f162dc 100644
--- a/dogether/Domain/Protocol/ChallengeGroupsProtocol.swift
+++ b/dogether/Domain/Protocol/ChallengeGroupsProtocol.swift
@@ -10,7 +10,6 @@ import Foundation
 protocol ChallengeGroupsProtocol {
     func createTodos(groupId: String, createTodosRequest: CreateTodosRequest) async throws
     func getMyTodos(groupId: String, date: String) async throws -> [TodoEntity]
-    func getMemberTodos(groupId: Int, memberId: Int) async throws -> (index: Int, todos: [TodoEntity])
-    func readTodo(todoId: String) async throws
-    func certifyTodo(todoId: String, certifyTodoRequest: CertifyTodoRequest) async throws
+    func getMemberTodos(groupId: Int, memberId: Int) async throws -> (index: Int, isMine: Bool, todos: [TodoEntity])
+    func readTodo(todoHistoryId: String) async throws
 }
diff --git a/dogether/Domain/Protocol/TodosProtocol.swift b/dogether/Domain/Protocol/TodosProtocol.swift
new file mode 100644
index 00000000..f2c7767a
--- /dev/null
+++ b/dogether/Domain/Protocol/TodosProtocol.swift
@@ -0,0 +1,13 @@
+//
+//  TodosProtocol.swift
+//  dogether
+//
+//  Created by seungyooooong on 1/3/26.
+//
+
+import Foundation
+
+protocol TodosProtocol {
+    func certifyTodo(todoId: String, certifyTodoRequest: CertifyTodoRequest) async throws
+    func remindTodo(todoId: String, remindTodoRequest: RemindTodoRequest) async throws
+}
diff --git a/dogether/Domain/Protocol/UserProtocol.swift b/dogether/Domain/Protocol/UserProtocol.swift
index 5889438a..1109ce52 100644
--- a/dogether/Domain/Protocol/UserProtocol.swift
+++ b/dogether/Domain/Protocol/UserProtocol.swift
@@ -19,5 +19,7 @@ protocol UserProtocol {
         certificationListViewDatas: CertificationListViewDatas
     )
     
+    func getMyCertifications(todoId: Int, sortOption: SortOptions) async throws -> [TodoEntity]
+    
     func getProfileViewDatas() async throws -> ProfileViewDatas
 }
diff --git a/dogether/Domain/UseCase/ChallengeGroupUseCase.swift b/dogether/Domain/UseCase/ChallengeGroupsUseCase.swift
similarity index 69%
rename from dogether/Domain/UseCase/ChallengeGroupUseCase.swift
rename to dogether/Domain/UseCase/ChallengeGroupsUseCase.swift
index 9468f4c1..54eec0d8 100644
--- a/dogether/Domain/UseCase/ChallengeGroupUseCase.swift
+++ b/dogether/Domain/UseCase/ChallengeGroupsUseCase.swift
@@ -1,5 +1,5 @@
 //
-//  ChallengeGroupUseCase.swift
+//  ChallengeGroupsUseCase.swift
 //  dogether
 //
 //  Created by seungyooooong on 3/30/25.
@@ -7,7 +7,7 @@
 
 import Foundation
 
-final class ChallengeGroupUseCase {
+final class ChallengeGroupsUseCase {
     private let repository: ChallengeGroupsProtocol
     
     init(repository: ChallengeGroupsProtocol) {
@@ -20,21 +20,17 @@ final class ChallengeGroupUseCase {
     }
     
     func getMyTodos(groupId: Int, date: String) async throws -> [TodoEntity] {
-        try await repository.getMyTodos(groupId: String(groupId), date: date)
+        try await repository.getMyTodos(groupId: String(groupId), date: date).map { $0.with(createdAt: date) }
     }
     
-    func getMemberTodos(groupId: Int, memberId: Int) async throws -> (index: Int, todos: [TodoEntity]) {
+    func getMemberTodos(groupId: Int, memberId: Int) async throws -> (index: Int, isMine: Bool, todos: [TodoEntity]) {
         try await repository.getMemberTodos(groupId: groupId, memberId: memberId)
     }
     
     func readTodo(todo: TodoEntity) async throws {
+        guard let todoHistoryId = todo.historyId else { return }
         // MARK: 이미 thumbnailStatus 가 done인 투두는 read API 호출할 필요 x
         if todo.thumbnailStatus == .done { return }
-        try await repository.readTodo(todoId: String(todo.id))
-    }
-    
-    func certifyTodo(todoId: Int, content: String, mediaUrl: String) async throws {
-        let certifyTodoRequest = CertifyTodoRequest(content: content, mediaUrl: mediaUrl)
-        try await repository.certifyTodo(todoId: String(todoId), certifyTodoRequest: certifyTodoRequest)
+        try await repository.readTodo(todoHistoryId: String(todoHistoryId))
     }
 }
diff --git a/dogether/Domain/UseCase/TodosUseCase.swift b/dogether/Domain/UseCase/TodosUseCase.swift
new file mode 100644
index 00000000..52411514
--- /dev/null
+++ b/dogether/Domain/UseCase/TodosUseCase.swift
@@ -0,0 +1,26 @@
+//
+//  TodosUseCase.swift
+//  dogether
+//
+//  Created by seungyooooong on 1/3/26.
+//
+
+import Foundation
+
+final class TodosUseCase {
+    private let repository: TodosProtocol
+    
+    init(repository: TodosProtocol) {
+        self.repository = repository
+    }
+    
+    func certifyTodo(todoId: Int, content: String, mediaUrl: String) async throws {
+        let certifyTodoRequest = CertifyTodoRequest(content: content, mediaUrl: mediaUrl)
+        try await repository.certifyTodo(todoId: String(todoId), certifyTodoRequest: certifyTodoRequest)
+    }
+    
+    func remindTodo(remindType: RemindTypes, todoId: Int) async throws {
+        let remindTodoRequest = RemindTodoRequest(reminderType: remindType.rawValue)
+        try await repository.remindTodo(todoId: String(todoId), remindTodoRequest: remindTodoRequest)
+    }
+}
diff --git a/dogether/Domain/UseCase/UserUseCase.swift b/dogether/Domain/UseCase/UserUseCase.swift
index df16cd54..3c8e8b70 100644
--- a/dogether/Domain/UseCase/UserUseCase.swift
+++ b/dogether/Domain/UseCase/UserUseCase.swift
@@ -29,6 +29,10 @@ final class UserUseCase {
         try await repository.getCertificationListViewDatas(option: option, page: page)
     }
     
+    func getMyCertifications(todoId: Int, sortOption: SortOptions) async throws -> [TodoEntity] {
+        try await repository.getMyCertifications(todoId: todoId, sortOption: sortOption)
+    }
+    
     func getProfileViewDatas() async throws -> ProfileViewDatas {
         try await repository.getProfileViewDatas()
     }
diff --git a/dogether/Presentation/Common/DogetherButton.swift b/dogether/Presentation/Common/DogetherButton.swift
index 579a32a7..594622d2 100644
--- a/dogether/Presentation/Common/DogetherButton.swift
+++ b/dogether/Presentation/Common/DogetherButton.swift
@@ -23,6 +23,9 @@ final class DogetherButton: BaseButton {
         setTitle(title, for: .normal)
         titleLabel?.font = Fonts.body1B
         layer.cornerRadius = 8
+        
+        setTitleColor(ButtonStatus.enabled.textColor, for: .normal)
+        backgroundColor = ButtonStatus.enabled.backgroundColor
     }
     
     override func configureAction() { }
@@ -45,8 +48,6 @@ final class DogetherButton: BaseButton {
             setTitleColor(datas.status.textColor, for: .normal)
             backgroundColor = datas.status.backgroundColor
             isEnabled = datas.status == .enabled
-            
-            isHidden = datas.isHidden
         }
     }
 }
@@ -54,10 +55,8 @@ final class DogetherButton: BaseButton {
 // MARK: - ViewDatas
 struct DogetherButtonViewDatas: BaseEntity {
     var status: ButtonStatus
-    var isHidden: Bool
     
-    init(status: ButtonStatus = .enabled, isHidden: Bool = false) {
+    init(status: ButtonStatus = .enabled) {
         self.status = status
-        self.isHidden = isHidden
     }
 }
diff --git a/dogether/Presentation/Common/ReviewFeedbackView.swift b/dogether/Presentation/Common/ReviewFeedbackView.swift
index a2254a07..b5e2d792 100644
--- a/dogether/Presentation/Common/ReviewFeedbackView.swift
+++ b/dogether/Presentation/Common/ReviewFeedbackView.swift
@@ -11,6 +11,7 @@ final class ReviewFeedbackView: BaseView {
     private let reviewFeedbackLabel = UILabel()
     
     override func configureView() {
+        isHidden = true
         backgroundColor = .grey700
         layer.cornerRadius = 8
         
diff --git a/dogether/Presentation/Features/Certificate/CertificateViewModel.swift b/dogether/Presentation/Features/Certificate/CertificateViewModel.swift
index 65d2ac4e..217a373b 100644
--- a/dogether/Presentation/Features/Certificate/CertificateViewModel.swift
+++ b/dogether/Presentation/Features/Certificate/CertificateViewModel.swift
@@ -10,7 +10,7 @@ import UIKit
 import RxRelay
 
 final class CertificateViewModel {
-    private let challengeGroupUseCase: ChallengeGroupUseCase
+    private let todosUseCase: TodosUseCase
     
     private(set) var certificateViewDatas = BehaviorRelay<CertificateViewDatas>(value: CertificateViewDatas())
     private(set) var certificateTextViewDatas = BehaviorRelay<DogetherTextViewDatas>(value: DogetherTextViewDatas())
@@ -19,8 +19,8 @@ final class CertificateViewModel {
     )
 
     init() {
-        let repository = DIManager.shared.getChallengeGroupsRepository()
-        self.challengeGroupUseCase = ChallengeGroupUseCase(repository: repository)
+        let todosRepository = DIManager.shared.getTodosRepository()
+        self.todosUseCase = TodosUseCase(repository: todosRepository)
     }
 }
 
@@ -58,6 +58,6 @@ extension CertificateViewModel {
         let todo = certificateViewDatas.value.todo
         guard let content = todo.certificationContent,
               let mediaUrl = todo.certificationMediaUrl else { return }
-        try await challengeGroupUseCase.certifyTodo(todoId: todo.id, content: content, mediaUrl: mediaUrl)
+        try await todosUseCase.certifyTodo(todoId: todo.id, content: content, mediaUrl: mediaUrl)
     }
 }
diff --git a/dogether/Presentation/Features/Certification/CertificationViewController.swift b/dogether/Presentation/Features/Certification/CertificationViewController.swift
index 64694b94..d00f15cc 100644
--- a/dogether/Presentation/Features/Certification/CertificationViewController.swift
+++ b/dogether/Presentation/Features/Certification/CertificationViewController.swift
@@ -17,13 +17,19 @@ final class CertificationViewController: BaseViewController {
         pages = [certificationPage]
 
         super.viewDidLoad()
+    }
+    
+    override func viewWillAppear(_ animated: Bool) {
+        super.viewWillAppear(animated)
+        
+        loadCertificationView()
         
-        onAppear()
+        coordinator?.updateViewController = loadCertificationView
     }
     
     override func setViewDatas() {
-        if let datas = datas as? CertificationViewDatas {
-            viewModel.certificationViewDatas.accept(datas)
+        if let datas = datas as? PreCertificationViewDatas {
+            viewModel.preCertificationViewDatas.accept(datas)
         }
         
         bind(viewModel.certificationViewDatas)
@@ -31,10 +37,17 @@ final class CertificationViewController: BaseViewController {
 }
 
 extension CertificationViewController {
-    private func onAppear() {
+    private func loadCertificationView() {
         Task { [weak self] in
             guard let self else { return }
-            try await viewModel.readTodo()
+            do {
+                try await viewModel.loadCertificationView()
+                try await viewModel.readTodo()
+            } catch let error as NetworkError {
+                if case .noData = error {
+                    coordinator?.popViewController()
+                }
+            }
         }
     }
 }
@@ -45,6 +58,7 @@ protocol CertificationDelegate {
     func certificationTapAction(_ scrollView: UIScrollView, _ stackView: UIStackView, _ gesture: UITapGestureRecognizer)
     func certificationListScrollEndAction(index: Int)
     func goCertificateViewAction(todo: TodoEntity)
+    func remindTodoAction(remindType: RemindTypes, todoId: Int)
 }
 
 extension CertificationViewController: CertificationDelegate {
@@ -98,4 +112,13 @@ extension CertificationViewController: CertificationDelegate {
         let certificateViewDatas = CertificateViewDatas(todo: todo)
         coordinator?.pushViewController(certificateImageViewController, datas: certificateViewDatas)
     }
+    
+    func remindTodoAction(remindType: RemindTypes, todoId: Int) {
+        Task { [weak self] in
+            guard let self else { return }
+            try await viewModel.remindTodo(remindType: remindType, todoId: todoId)
+            // TODO: 재촉 메시지가 전송되었어요 토스트 메시지 노출
+            viewModel.updateButtonStatus(remindType: remindType, todoId: todoId)
+        }
+    }
 }
diff --git a/dogether/Presentation/Features/Certification/CertificationViewModel.swift b/dogether/Presentation/Features/Certification/CertificationViewModel.swift
index 47f4d188..4c6c6a64 100644
--- a/dogether/Presentation/Features/Certification/CertificationViewModel.swift
+++ b/dogether/Presentation/Features/Certification/CertificationViewModel.swift
@@ -8,19 +8,74 @@
 import RxRelay
 
 final class CertificationViewModel {
-    private let challengeGroupsUseCase: ChallengeGroupUseCase
+    private let challengeGroupsUseCase: ChallengeGroupsUseCase
+    private let todosUseCase: TodosUseCase
+    private let userUseCase: UserUseCase
     
+    private(set) var preCertificationViewDatas = BehaviorRelay<PreCertificationViewDatas?>(value: nil)
     private(set) var certificationViewDatas = BehaviorRelay<CertificationViewDatas>(value: CertificationViewDatas())
     
     init() {
         let challengeGroupsRepository = DIManager.shared.getChallengeGroupsRepository()
-        self.challengeGroupsUseCase = ChallengeGroupUseCase(repository: challengeGroupsRepository)
+        let todosRepository = DIManager.shared.getTodosRepository()
+        let userRepository = DIManager.shared.getUserRepository()
+        
+        self.challengeGroupsUseCase = ChallengeGroupsUseCase(repository: challengeGroupsRepository)
+        self.todosUseCase = TodosUseCase(repository: todosRepository)
+        self.userUseCase = UserUseCase(repository: userRepository)
     }
 }
 
 extension CertificationViewModel {
+    func loadCertificationView() async throws {
+        guard let datas = preCertificationViewDatas.value else { return }
+
+        switch datas {
+        case .main(let title, let date, let groupId, let todoId, let filter):
+            let todos = try await getMyTodos(groupId: groupId, date: date, filter: filter)
+            certificationViewDatas.update {
+                $0.title = title
+                $0.index = todos.firstIndex { $0.id == todoId } ?? 0
+                $0.todos = todos
+            }
+
+        case .ranking(let title, let groupId, let memberId):
+            let (index, isMine, todos) = try await getMemberTodos(groupId: groupId, memberId: memberId)
+            certificationViewDatas.update {
+                $0.title = title
+                $0.isMine = isMine
+                $0.index = index
+                $0.todos = todos
+            }
+
+        case .certificationList(let title, let todoId, let sortOption, let filter):
+            let todos = try await getMyCertifications(todoId: todoId, sortOption: sortOption, filter: filter)
+            certificationViewDatas.update {
+                $0.title = title
+                $0.index = todos.firstIndex { $0.id == todoId } ?? 0
+                $0.todos = todos
+            }
+        }
+    }
+    
+    func getMyTodos(groupId: Int, date: String, filter: FilterTypes) async throws -> [TodoEntity] {
+        try await challengeGroupsUseCase.getMyTodos(groupId: groupId, date: date).filter {
+            filter == .all || filter == FilterTypes(status: $0.status.rawValue)
+        }
+    }
+    
+    func getMemberTodos(groupId: Int, memberId: Int) async throws -> (Int, Bool, [TodoEntity]) {
+        try await challengeGroupsUseCase.getMemberTodos(groupId: groupId, memberId: memberId)
+    }
+    
+    func getMyCertifications(todoId: Int, sortOption: SortOptions, filter: FilterTypes) async throws -> [TodoEntity] {
+        try await userUseCase.getMyCertifications(todoId: todoId, sortOption: sortOption).filter {
+            filter == .all || filter == FilterTypes(status: $0.status.rawValue)
+        }
+    }
+    
     func setIndex(index: Int) async throws {
-        if certificationViewDatas.value.rankingEntity == nil {
+        if certificationViewDatas.value.isMine == nil {
             certificationViewDatas.update { $0.index = index }
         } else {
             // MARK: 이전에 보고 있던 thumbnailStatus를 수정하고 이동한 todo의 read API를 호출
@@ -31,9 +86,23 @@ extension CertificationViewModel {
     }
     
     func readTodo(index: Int? = nil) async throws {
-        if certificationViewDatas.value.rankingEntity == nil { return }
-        try await challengeGroupsUseCase.readTodo(
-            todo: certificationViewDatas.value.todos[index ?? certificationViewDatas.value.index]
-        )
+        let index = index ?? certificationViewDatas.value.index
+        guard let todo = certificationViewDatas.value.todos[safe: index],
+              case .ranking = preCertificationViewDatas.value else { return }
+        try await challengeGroupsUseCase.readTodo(todo: todo)
+    }
+    
+    func remindTodo(remindType: RemindTypes, todoId: Int) async throws {
+        try await todosUseCase.remindTodo(remindType: remindType, todoId: todoId)
+    }
+    
+    func updateButtonStatus(remindType: RemindTypes, todoId: Int) {
+        guard let index = certificationViewDatas.value.todos.firstIndex(where: { $0.id == todoId }) else { return }
+        switch remindType {
+        case .certification:
+            certificationViewDatas.update { $0.todos[index].canRemindCertification = false }
+        case .review:
+            certificationViewDatas.update { $0.todos[index].canRemindReview = false }
+        }
     }
 }
diff --git a/dogether/Presentation/Features/Certification/Components/CertificationListView.swift b/dogether/Presentation/Features/Certification/Components/CertificationListView.swift
index 62512b44..85642186 100644
--- a/dogether/Presentation/Features/Certification/Components/CertificationListView.swift
+++ b/dogether/Presentation/Features/Certification/Components/CertificationListView.swift
@@ -19,6 +19,7 @@ final class CertificationListView: BaseView {
     
     private let scrollView = UIScrollView()
     private let stackView = UIStackView()
+    private let skeletonView = SkeletonView()
     
     private var isFirst: Bool = true
     private var currentIndex: Int?
@@ -40,6 +41,7 @@ final class CertificationListView: BaseView {
     override func configureHierarchy() {
         [scrollView].forEach { addSubview($0) }
         [stackView].forEach { scrollView.addSubview($0) }
+        stackView.addArrangedSubview(skeletonView)
     }
     
     override func configureConstraints() {
@@ -49,15 +51,25 @@ final class CertificationListView: BaseView {
         
         stackView.snp.makeConstraints {
             $0.horizontalEdges.equalToSuperview().inset(16)
+            $0.width.equalToSuperview().offset(-32)
+            $0.height.equalToSuperview()
+        }
+        
+        skeletonView.snp.makeConstraints {
+            $0.edges.equalToSuperview()
         }
     }
     
     // MARK: - updateView
     override func updateView(_ data: (any BaseEntity)?) {
         if let datas = data as? CertificationViewDatas {
+            if datas.todos.isEmpty { return }
+            
             if isFirst {
                 isFirst = false
                 
+                stackView.arrangedSubviews.forEach { $0.removeFromSuperview() }
+                
                 layoutIfNeeded()
                 
                 datas.todos
@@ -78,7 +90,7 @@ final class CertificationListView: BaseView {
                         stackView.addArrangedSubview($0)
                     }
                 
-                stackView.snp.makeConstraints {
+                stackView.snp.remakeConstraints {
                     $0.horizontalEdges.equalToSuperview().inset(16)
                     $0.width.equalTo(frame.width * CGFloat(datas.todos.count) - 32)
                     $0.height.equalToSuperview()
diff --git a/dogether/Presentation/Features/Certification/Components/CertificationPage.swift b/dogether/Presentation/Features/Certification/Components/CertificationPage.swift
index 41af8f01..c0b8ad43 100644
--- a/dogether/Presentation/Features/Certification/Components/CertificationPage.swift
+++ b/dogether/Presentation/Features/Certification/Components/CertificationPage.swift
@@ -12,12 +12,24 @@ final class CertificationPage: BasePage {
         didSet {
             thumbnailListView.delegate = delegate
             certificationListView.delegate = delegate
-//            certificateButton.addAction(
-//                UIAction { [weak self] _ in
-//                    guard let self, let currentTodo else { return }
-//                    delegate?.goCertificateViewAction(todo: currentTodo)
-//                }, for: .touchUpInside
-//            )
+            certificateButton.addAction(
+                UIAction { [weak self] _ in
+                    guard let self, let currentTodo else { return }
+                    delegate?.goCertificateViewAction(todo: currentTodo)
+                }, for: .touchUpInside
+            )
+            remindCertificationButton.addAction(
+                UIAction { [weak self] _ in
+                    guard let self, let currentTodo else { return }
+                    delegate?.remindTodoAction(remindType: .certification, todoId: currentTodo.id)
+                }, for: .touchUpInside
+            )
+            remindReviewButton.addAction(
+                UIAction { [weak self] _ in
+                    guard let self, let currentTodo else { return }
+                    delegate?.remindTodoAction(remindType: .review, todoId: currentTodo.id)
+                }, for: .touchUpInside
+            )
         }
     }
     
@@ -27,11 +39,16 @@ final class CertificationPage: BasePage {
     private let certificationStackView = UIStackView()
     private let certificationListView = CertificationListView()
     private let statusView = TodoStatusButton()
+    private let statusSkeletonView = SkeletonView()
     private let contentLabel = UILabel()
+    private let contentLabelSkeletonView = SkeletonView()
     private let reviewFeedbackView = ReviewFeedbackView()
-//    private let certificateButton = DogetherButton("인증하기")
+    private let certificateButton = DogetherButton("인증하기")
+    private let remindCertificationButton = DogetherButton("인증 재촉하기")
+    private let remindReviewButton = DogetherButton("검사 재촉하기")
     
     private var currentTodo: TodoEntity?
+    private var isFirst: Bool = true
     
     override func configureView() {
         certificationScrollView.showsVerticalScrollIndicator = false
@@ -47,6 +64,8 @@ final class CertificationPage: BasePage {
         
         contentLabel.textColor = .grey0
         contentLabel.numberOfLines = 0
+        
+        [certificateButton, remindCertificationButton, remindReviewButton].forEach { $0.isHidden = true }
     }
     
     override func configureAction() {
@@ -54,8 +73,13 @@ final class CertificationPage: BasePage {
     }
     
     override func configureHierarchy() {
-        [navigationHeader, thumbnailListView, certificationScrollView/*, certificateButton*/].forEach { addSubview($0) }
+        [ navigationHeader, thumbnailListView, certificationScrollView,
+          certificateButton, remindCertificationButton, remindReviewButton
+        ].forEach { addSubview($0) }
         certificationScrollView.addSubview(certificationStackView)
+        
+        statusView.addSubview(statusSkeletonView)
+        contentLabel.addSubview(contentLabelSkeletonView)
     }
      
     override func configureConstraints() {
@@ -88,44 +112,86 @@ final class CertificationPage: BasePage {
         
         statusView.snp.makeConstraints {
             $0.centerX.equalToSuperview()
+            $0.width.equalTo(100)
+            $0.height.equalTo(36)
         }
         
         contentLabel.snp.makeConstraints {
             $0.horizontalEdges.equalToSuperview().inset(16)
+            $0.height.equalTo(36)
         }
         
         reviewFeedbackView.snp.makeConstraints {
             $0.horizontalEdges.equalToSuperview().inset(16)
         }
         
-//        certificateButton.snp.makeConstraints {
-//            $0.bottom.horizontalEdges.equalToSuperview().inset(16)
-//        }
+        certificateButton.snp.makeConstraints {
+            $0.bottom.horizontalEdges.equalToSuperview().inset(16)
+        }
+        
+        remindCertificationButton.snp.makeConstraints {
+            $0.bottom.horizontalEdges.equalToSuperview().inset(16)
+        }
+        
+        remindReviewButton.snp.makeConstraints {
+            $0.bottom.horizontalEdges.equalToSuperview().inset(16)
+        }
+        
+        [statusSkeletonView, contentLabelSkeletonView].forEach {
+            $0.snp.makeConstraints { $0.edges.equalToSuperview() }
+        }
     }
     
     // MARK: - updateView
     override func updateView(_ data: (any BaseEntity)?) {
         guard let datas = data as? CertificationViewDatas else { return }
+        
         navigationHeader.updateView(datas)
         thumbnailListView.updateView(datas)
         certificationListView.updateView(datas)
         
-        if currentTodo != datas.todos[datas.index] {
-            currentTodo = datas.todos[datas.index]
+        if let todo = datas.todos[safe: datas.index], currentTodo != todo {
+            if isFirst {
+                isFirst = false
+                
+                statusView.snp.remakeConstraints {
+                    $0.centerX.equalToSuperview()
+                }
+                
+                contentLabel.snp.remakeConstraints {
+                    $0.horizontalEdges.equalToSuperview().inset(16)
+                }
+                
+                [statusSkeletonView, contentLabelSkeletonView].forEach { $0.removeFromSuperview() }
+            }
+            
+            currentTodo = todo
             
-            statusView.updateView(datas.todos[datas.index].status)
+            statusView.updateView(todo.status)
             
             contentLabel.attributedText = NSAttributedString(
-                string:  datas.todos[datas.index].content,
+                string: todo.content,
                 attributes: Fonts.getAttributes(for: Fonts.head1B, textAlignment: .center)
             )
             
-            reviewFeedbackView.updateView(datas.todos[datas.index].reviewFeedback ?? "")
+            reviewFeedbackView.updateView(todo.reviewFeedback ?? "")
             
-            // FIXME: 추후 수정
-//            var dogetherButtonViewDatas = certificateButton.currentViewDatas ?? DogetherButtonViewDatas()
-//            dogetherButtonViewDatas.isHidden = datas.rankingEntity != nil || datas.todos[datas.index].status != .waitCertification
-//            certificateButton.updateView(dogetherButtonViewDatas)
+            let date = DateFormatterManager.formattedDate().translateDateFormatForServer()
+            let isWaitCertification = todo.status == .waitCertification
+            let isWaitExamination = todo.status == .waitExamination
+            let isToday = todo.createdAt ?? date == date
+            let isMine = datas.isMine ?? true
+            
+            certificateButton.isHidden = !(isWaitCertification && isToday && isMine)
+            remindCertificationButton.isHidden = !(isWaitCertification && !isMine)
+            remindReviewButton.isHidden = !isWaitExamination
+            
+            remindCertificationButton.updateView(
+                DogetherButtonViewDatas(status: todo.canRemindCertification ? .enabled : .disabled)
+            )
+            remindReviewButton.updateView(
+                DogetherButtonViewDatas(status: todo.canRemindReview ? .enabled : .disabled)
+            )
         }
     }
 }
diff --git a/dogether/Presentation/Features/Certification/Components/ThumbnailListView.swift b/dogether/Presentation/Features/Certification/Components/ThumbnailListView.swift
index 2dd67e8e..097e2ea7 100644
--- a/dogether/Presentation/Features/Certification/Components/ThumbnailListView.swift
+++ b/dogether/Presentation/Features/Certification/Components/ThumbnailListView.swift
@@ -19,6 +19,7 @@ final class ThumbnailListView: BaseView {
     
     private let scrollView = UIScrollView()
     private let stackView = UIStackView()
+    private let skeletonViews = (0 ..< 6).map { _ in SkeletonView() }
     
     private var isFirst: Bool = true
     private var currentIndex: Int?
@@ -37,6 +38,7 @@ final class ThumbnailListView: BaseView {
     override func configureHierarchy() {
         [scrollView].forEach { addSubview($0) }
         [stackView].forEach { scrollView.addSubview($0) }
+        skeletonViews.forEach { stackView.addArrangedSubview($0) }
     }
     
     override func configureConstraints() {
@@ -47,14 +49,22 @@ final class ThumbnailListView: BaseView {
         stackView.snp.makeConstraints {
             $0.horizontalEdges.equalToSuperview().inset(16)
         }
+        
+        skeletonViews.forEach { $0.snp.makeConstraints {
+            $0.width.height.equalTo(54)
+        } }
     }
     
     // MARK: - updateView
     override func updateView(_ data: (any BaseEntity)?) {
         if let datas = data as? CertificationViewDatas {
+            if datas.todos.isEmpty { return }
+            
             if isFirst {
                 isFirst = false
                 
+                stackView.arrangedSubviews.forEach { $0.removeFromSuperview() }
+                
                 datas.todos
                     .enumerated().map {
                         let thumbnailView = ThumbnailView()
diff --git a/dogether/Presentation/Features/CertificationList/CertificationListViewController.swift b/dogether/Presentation/Features/CertificationList/CertificationListViewController.swift
index 264389e2..e7f21250 100644
--- a/dogether/Presentation/Features/CertificationList/CertificationListViewController.swift
+++ b/dogether/Presentation/Features/CertificationList/CertificationListViewController.swift
@@ -51,7 +51,7 @@ protocol CertificationListPageDelegate {
     func updateBottomSheetVisibleAction(isShowSheet: Bool)
     func selectSortAction(index: Int)
     func selectFilterAction(filterType: FilterTypes)
-    func selectCertificationAction(title: String, todos: [TodoEntity], index: Int)
+    func selectCertificationAction(title: String, todo: TodoEntity)
     func didScrollToBottom()
 }
 
@@ -70,10 +70,15 @@ extension CertificationListViewController: CertificationListPageDelegate {
         viewModel.updateFilter(filter: filterType)
     }
     
-    func selectCertificationAction(title: String, todos: [TodoEntity], index: Int) {
+    func selectCertificationAction(title: String, todo: TodoEntity) {
         let certificationViewController = CertificationViewController()
-        let certificationViewDatas = CertificationViewDatas(title: title, todos: todos, index: index)
-        coordinator?.pushViewController(certificationViewController, datas: certificationViewDatas)
+        let preCertificationViewDatas = PreCertificationViewDatas.certificationList(
+            title: title,
+            todoId: todo.id,
+            sortOption: viewModel.sortViewDatas.value.options[viewModel.sortViewDatas.value.index],
+            filter: viewModel.certificationListViewDatas.value.filter
+        )
+        coordinator?.pushViewController(certificationViewController, datas: preCertificationViewDatas)
     }
     
     func didScrollToBottom() {
diff --git a/dogether/Presentation/Features/CertificationList/Components/CertificationListContentView.swift b/dogether/Presentation/Features/CertificationList/Components/CertificationListContentView.swift
index fb39d5b1..4d2c6534 100644
--- a/dogether/Presentation/Features/CertificationList/Components/CertificationListContentView.swift
+++ b/dogether/Presentation/Features/CertificationList/Components/CertificationListContentView.swift
@@ -211,7 +211,7 @@ extension CertificationListContentView: UICollectionViewDelegate {
             title = groupName
         }
         
-        delegate?.selectCertificationAction(title: title, todos: section.todos, index: indexPath.item)
+        delegate?.selectCertificationAction(title: title, todo: section.todos[indexPath.item])
     }
 }
 
diff --git a/dogether/Presentation/Features/CertificationList/Components/CertificationListViewStatus.swift b/dogether/Presentation/Features/CertificationList/Components/CertificationListViewStatus.swift
deleted file mode 100644
index e24fa49e..00000000
--- a/dogether/Presentation/Features/CertificationList/Components/CertificationListViewStatus.swift
+++ /dev/null
@@ -1,13 +0,0 @@
-//
-//  CertificationListViewStatus.swift
-//  dogether
-//
-//  Created by yujaehong on 4/28/25.
-//
-
-import UIKit
-
-enum CertificationListViewStatus {
-    case empty
-    case hasData
-}
diff --git a/dogether/Presentation/Features/Main/Components/TodoListItemButton.swift b/dogether/Presentation/Features/Main/Components/TodoListItemButton.swift
index 5e966d2f..111929a7 100644
--- a/dogether/Presentation/Features/Main/Components/TodoListItemButton.swift
+++ b/dogether/Presentation/Features/Main/Components/TodoListItemButton.swift
@@ -19,20 +19,18 @@ final class TodoListItemButton: BaseButton {
                             delegate?.goCertificateViewAction(todo: todo)
                         } else { return }
                     } else {
-                        delegate?.goCertificationViewAction(index: index)
+                        delegate?.goCertificationViewAction(todo: todo)
                     }
                 }, for: .touchUpInside
             )
         }
     }
     
-    private(set) var index: Int
     private(set) var todo: TodoEntity
     private(set) var isToday: Bool
     private(set) var isUncertified: Bool
     
-    init(index: Int, todo: TodoEntity, isToday: Bool) {
-        self.index = index
+    init(todo: TodoEntity, isToday: Bool) {
         self.todo = todo
         self.isToday = isToday
         self.isUncertified = todo.status == .waitCertification
diff --git a/dogether/Presentation/Features/Main/Components/TodoListView.swift b/dogether/Presentation/Features/Main/Components/TodoListView.swift
index 423ca54a..c337f4ff 100644
--- a/dogether/Presentation/Features/Main/Components/TodoListView.swift
+++ b/dogether/Presentation/Features/Main/Components/TodoListView.swift
@@ -127,8 +127,8 @@ final class TodoListView: BaseView {
             
             todoListStackView.subviews.forEach { todoListStackView.removeArrangedSubview($0) }
             currentTodoList
-                .enumerated().map {
-                    let todoListItemButton = TodoListItemButton(index: $0, todo: $1, isToday: isToday)
+                .map {
+                    let todoListItemButton = TodoListItemButton(todo: $0, isToday: isToday)
                     todoListItemButton.delegate = delegate
                     return todoListItemButton
                 }
diff --git a/dogether/Presentation/Features/Main/MainViewController.swift b/dogether/Presentation/Features/Main/MainViewController.swift
index 3d76d713..e768b94c 100644
--- a/dogether/Presentation/Features/Main/MainViewController.swift
+++ b/dogether/Presentation/Features/Main/MainViewController.swift
@@ -115,7 +115,7 @@ protocol MainDelegate {
     func goWriteTodoViewAction(todos: [TodoEntity])
     func selectFilterAction(filterType: FilterTypes)
     func goCertificateViewAction(todo: TodoEntity)
-    func goCertificationViewAction(index: Int)
+    func goCertificationViewAction(todo: TodoEntity)
 }
 
 extension MainViewController: MainDelegate {
@@ -235,15 +235,18 @@ extension MainViewController: MainDelegate {
         coordinator?.pushViewController(certificateImageViewController, datas: certificateViewDatas)
     }
     
-    func goCertificationViewAction(index: Int) {
+    func goCertificationViewAction(todo: TodoEntity) {
         let certificationViewController = CertificationViewController()
-        let certificationViewDatas = CertificationViewDatas(
+        let date = DateFormatterManager.formattedDate(
+            viewModel.sheetViewDatas.value.dateOffset
+        ).translateDateFormatForServer()
+        let preCertificationViewDatas = PreCertificationViewDatas.main(
             title: "내 인증 정보",
-            todos: viewModel.sheetViewDatas.value.todoList.filter {
-                viewModel.sheetViewDatas.value.filter == .all || viewModel.sheetViewDatas.value.filter == FilterTypes(status: $0.status.rawValue)
-            },
-            index: index
+            date: date,
+            groupId: viewModel.currentGroup.id,
+            todoId: todo.id,
+            filter: viewModel.sheetViewDatas.value.filter
         )
-        coordinator?.pushViewController(certificationViewController, datas: certificationViewDatas)
+        coordinator?.pushViewController(certificationViewController, datas: preCertificationViewDatas)
     }
 }
diff --git a/dogether/Presentation/Features/Main/MainViewModel.swift b/dogether/Presentation/Features/Main/MainViewModel.swift
index 41b7af5b..13475efb 100644
--- a/dogether/Presentation/Features/Main/MainViewModel.swift
+++ b/dogether/Presentation/Features/Main/MainViewModel.swift
@@ -11,7 +11,7 @@ import RxRelay
 
 final class MainViewModel {
     private let groupUseCase: GroupUseCase
-    private let challengeGroupsUseCase: ChallengeGroupUseCase
+    private let challengeGroupsUseCase: ChallengeGroupsUseCase
     private let todoCertificationsUseCase: TodoCertificationsUseCase
     
     private(set) var bottomSheetViewDatas = BehaviorRelay<BottomSheetViewDatas>(value: BottomSheetViewDatas())
@@ -30,7 +30,7 @@ final class MainViewModel {
         let todoCertificationsRepository = DIManager.shared.getTodoCertificationsRepository()
         
         self.groupUseCase = GroupUseCase(repository: groupRepository)
-        self.challengeGroupsUseCase = ChallengeGroupUseCase(repository: challengeGroupsRepository)
+        self.challengeGroupsUseCase = ChallengeGroupsUseCase(repository: challengeGroupsRepository)
         self.todoCertificationsUseCase = TodoCertificationsUseCase(repository: todoCertificationsRepository)
     }
 }
@@ -42,7 +42,7 @@ extension MainViewModel {
     }
     
     func getTodoList(dateOffset: Int, groupId: Int) async throws -> [TodoEntity] {
-        let date = DateFormatterManager.formattedDate(dateOffset).split(separator: ".").joined(separator: "-")
+        let date = DateFormatterManager.formattedDate(dateOffset).translateDateFormatForServer()
         return try await challengeGroupsUseCase.getMyTodos(groupId: groupId, date: date)
     }
     
diff --git a/dogether/Presentation/Features/Ranking/RankingViewController.swift b/dogether/Presentation/Features/Ranking/RankingViewController.swift
index adaa414b..4022adf5 100644
--- a/dogether/Presentation/Features/Ranking/RankingViewController.swift
+++ b/dogether/Presentation/Features/Ranking/RankingViewController.swift
@@ -51,20 +51,12 @@ protocol RankingDelegate {
 
 extension RankingViewController: RankingDelegate {
     func goCertificationViewAction(rankingEntity: RankingEntity) {
-        Task {
-            let (index, todos) = try await viewModel.getMemberTodos(memberId: rankingEntity.memberId)
-            
-            await MainActor.run {
-                let certificationViewController = CertificationViewController()
-                let certificationViewDatas = CertificationViewDatas(
-                    title: "\(rankingEntity.name)님의 인증 정보",
-                    todos: todos,
-                    index: index,
-                    groupId: viewModel.rankingViewDatas.value.groupId,
-                    rankingEntity: rankingEntity
-                )
-                coordinator?.pushViewController(certificationViewController, datas: certificationViewDatas)
-            }
-        }
+        let certificationViewController = CertificationViewController()
+        let preCertificationViewDatas = PreCertificationViewDatas.ranking(
+            title: "\(rankingEntity.name)님의 인증 정보",
+            groupId: viewModel.rankingViewDatas.value.groupId,
+            memberId: rankingEntity.memberId
+        )
+        coordinator?.pushViewController(certificationViewController, datas: preCertificationViewDatas)
     }
 }
diff --git a/dogether/Presentation/Features/Ranking/RankingViewModel.swift b/dogether/Presentation/Features/Ranking/RankingViewModel.swift
index a6a3aee2..3895e3fb 100644
--- a/dogether/Presentation/Features/Ranking/RankingViewModel.swift
+++ b/dogether/Presentation/Features/Ranking/RankingViewModel.swift
@@ -11,16 +11,12 @@ import RxRelay
 
 final class RankingViewModel {
     private let groupUseCase: GroupUseCase
-    private let challengeGroupsUseCase: ChallengeGroupUseCase
     
     private(set) var rankingViewDatas = BehaviorRelay<RankingViewDatas>(value: RankingViewDatas())
     
     init() {
         let groupRepository = DIManager.shared.getGroupRepository()
-        let challengeGroupsRepository = DIManager.shared.getChallengeGroupsRepository()
-        
         self.groupUseCase = GroupUseCase(repository: groupRepository)
-        self.challengeGroupsUseCase = ChallengeGroupUseCase(repository: challengeGroupsRepository)
     }
 }
 
@@ -35,8 +31,4 @@ extension RankingViewModel {
         let rankings = try await groupUseCase.getRankings(groupId: rankingViewDatas.value.groupId)
         rankingViewDatas.update { $0.rankings = rankings }
     }
-    
-    func getMemberTodos(memberId: Int) async throws -> (Int, [TodoEntity]) {
-        try await challengeGroupsUseCase.getMemberTodos(groupId: rankingViewDatas.value.groupId, memberId: memberId)
-    }
 }
diff --git a/dogether/Presentation/Features/TodoWrite/TodoWriteViewModel.swift b/dogether/Presentation/Features/TodoWrite/TodoWriteViewModel.swift
index 4f085dda..e0322530 100644
--- a/dogether/Presentation/Features/TodoWrite/TodoWriteViewModel.swift
+++ b/dogether/Presentation/Features/TodoWrite/TodoWriteViewModel.swift
@@ -10,13 +10,13 @@ import Foundation
 import RxRelay
 
 final class TodoWriteViewModel {
-    private let challengeGroupsUseCase: ChallengeGroupUseCase
+    private let challengeGroupsUseCase: ChallengeGroupsUseCase
     
     private(set) var todoWriteViewDatas = BehaviorRelay<TodoWriteViewDatas>(value: TodoWriteViewDatas())
     
     init() {
         let challengeGroupsRepository = DIManager.shared.getChallengeGroupsRepository()
-        self.challengeGroupsUseCase = ChallengeGroupUseCase(repository: challengeGroupsRepository)
+        self.challengeGroupsUseCase = ChallengeGroupsUseCase(repository: challengeGroupsRepository)
     }
     
 }
diff --git a/dogether/Utility/Extension/StringExt.swift b/dogether/Utility/Extension/StringExt.swift
new file mode 100644
index 00000000..20e1cd5e
--- /dev/null
+++ b/dogether/Utility/Extension/StringExt.swift
@@ -0,0 +1,14 @@
+//
+//  StringExt.swift
+//  dogether
+//
+//  Created by seungyooooong on 2/20/26.
+//
+
+import Foundation
+
+extension String {
+    func translateDateFormatForServer() -> String {
+        self.split(separator: ".").joined(separator: "-")
+    }
+}
diff --git a/dogether/Utility/Manager/DIManager.swift b/dogether/Utility/Manager/DIManager.swift
index a26f96e4..5223f0a5 100644
--- a/dogether/Utility/Manager/DIManager.swift
+++ b/dogether/Utility/Manager/DIManager.swift
@@ -66,6 +66,15 @@ extension DIManager {
         }
     }
     
+    func getTodosRepository(buildMode: BuildModes? = nil) -> TodosProtocol {
+        switch buildMode ?? defaultBuildMode {
+        case .debug:
+            return TodosRepositoryTest()
+        case .live:
+            return TodosRepository()
+        }
+    }
+    
     func getUserRepository(buildMode: BuildModes? = nil) -> UserProtocol {
         switch buildMode ?? defaultBuildMode {
         case .debug: