diff --git a/Makefile b/Makefile
index 1927583..de82100 100644
--- a/Makefile
+++ b/Makefile
@@ -32,6 +32,7 @@ build-backend:
 		--distpath $(ELECTRON_DIR)/resources \
 		--hidden-import croniter --hidden-import dateutil --hidden-import pytz \
 		--add-data vendor/skill-creator:vendor/skill-creator \
+		--add-data channels/weixin_bridge:channels/weixin_bridge \
 		$(BACKEND_SRC)
 	@echo "后端二进制文件位置: $(BACKEND_BINARY)"
 	@ls -lh $(BACKEND_BINARY)
diff --git a/channels/weixin_channel.py b/channels/weixin_channel.py
index a34894a..4869f7b 100644
--- a/channels/weixin_channel.py
+++ b/channels/weixin_channel.py
@@ -11,7 +11,9 @@
 import json
 import os
 import re
+import shutil
 import subprocess
+import sys
 import threading
 import uuid
 from pathlib import Path
@@ -20,6 +22,23 @@
 
 from taskboard_bus import Channel, MessageBus, OutboundMessage, OutboundMessageType
 
+
+def _find_node_executable() -> Optional[str]:
+    """Locate the Node.js binary.
+
+    macOS apps launched from Finder/Dock inherit a minimal PATH that excludes
+    Homebrew (`/opt/homebrew/bin`), so ``shutil.which("node")`` misses even when
+    node is installed. Fall back to the common install locations.
+    """
+    found = shutil.which("node")
+    if found:
+        return found
+    for candidate in ("/opt/homebrew/bin/node", "/usr/local/bin/node", "/usr/bin/node"):
+        if os.path.exists(candidate):
+            return candidate
+    return None
+
+
 if TYPE_CHECKING:
     from taskboard import TaskDB, TaskScheduler
 
@@ -74,9 +93,18 @@ def __init__(
 
         bus.subscribe_outbound(self._on_outbound)
 
+    def _bridge_script_path(self) -> Path:
+        # In the PyInstaller bundle the bridge is shipped under sys._MEIPASS
+        # (via --add-data), not beside the frozen source module.
+        if getattr(sys, "frozen", False) and hasattr(sys, "_MEIPASS"):
+            return Path(sys._MEIPASS) / "channels" / "weixin_bridge" / "index.mjs"
+        return Path(__file__).resolve().parent / "weixin_bridge" / "index.mjs"
+
     def _default_bridge_cmd(self) -> list[str]:
-        bridge_path = Path(__file__).resolve().parent / "weixin_bridge" / "index.mjs"
-        return ["node", str(bridge_path)]
+        # Resolve node to a full path so it's found even under the minimal PATH
+        # a packaged macOS app inherits. Falls back to bare "node" when missing;
+        # start() then surfaces the FileNotFoundError as an error status.
+        return [_find_node_executable() or "node", str(self._bridge_script_path())]
 
     def start(self) -> None:
         self._running = True
@@ -102,9 +130,21 @@ def start(self) -> None:
                 bufsize=1,
                 env=env,
             )
+        except FileNotFoundError:
+            self._running = False
+            self._bridge_proc = None
+            msg = (
+                "Node.js not found. Install Node.js (https://nodejs.org) to use the Weixin channel."
+            )
+            print(f"[Weixin] {msg}")
+            self._update_status(login_status="error", last_error=msg)
+            return
         except Exception as exc:
             self._running = False
-            print(f"[Weixin] Failed to start bridge: {exc}")
+            self._bridge_proc = None
+            msg = f"Failed to start Weixin bridge: {exc}"
+            print(f"[Weixin] {msg}")
+            self._update_status(login_status="error", last_error=msg)
             return
 
         self._reader_thread = threading.Thread(target=self._read_bridge_events, daemon=True)
diff --git a/taskboard-electron/src/main.js b/taskboard-electron/src/main.js
index 88e9228..3842536 100644
--- a/taskboard-electron/src/main.js
+++ b/taskboard-electron/src/main.js
@@ -71,12 +71,22 @@ function killPortSync(port) {
   }
 }
 
+// macOS apps launched from Finder/Dock inherit a minimal PATH (no Homebrew),
+// so the Python backend can't find tools like `node` (needed by the Weixin
+// bridge). Prepend the common install dirs so child processes resolve them.
+function augmentedPath() {
+  const extra = ["/opt/homebrew/bin", "/usr/local/bin", "/usr/bin", "/bin"];
+  const current = process.env.PATH || "";
+  const merged = [...extra, ...current.split(":")].filter(Boolean);
+  return [...new Set(merged)].join(":");
+}
+
 function startPythonBackend() {
   killPortSync(9712);
   const { cmd, args, cwd } = getPythonCommand();
   pythonProcess = spawn(cmd, args, {
     stdio: ["ignore", "pipe", "pipe"],
-    env: { ...process.env },
+    env: { ...process.env, PATH: augmentedPath() },
     ...(cwd ? { cwd } : {}),
   });
 
diff --git a/taskboard.spec b/taskboard.spec
index f664d85..c07e15e 100644
--- a/taskboard.spec
+++ b/taskboard.spec
@@ -5,7 +5,7 @@ a = Analysis(
     ['taskboard.py'],
     pathex=[],
     binaries=[],
-    datas=[('vendor/skill-creator', 'vendor/skill-creator')],
+    datas=[('vendor/skill-creator', 'vendor/skill-creator'), ('channels/weixin_bridge', 'channels/weixin_bridge')],
     hiddenimports=['croniter', 'dateutil', 'pytz'],
     hookspath=[],
     hooksconfig={},
diff --git a/tests/test_weixin_more.py b/tests/test_weixin_more.py
index ad52c16..29eeb58 100644
--- a/tests/test_weixin_more.py
+++ b/tests/test_weixin_more.py
@@ -89,10 +89,59 @@ def _make_channel():
 def test_default_bridge_cmd_points_at_index_mjs():
     channel = _make_channel()
     cmd = channel._default_bridge_cmd()
-    assert cmd[0] == "node"
+    # cmd[0] is now a resolved node path (or bare "node" when none is found)
+    assert cmd[0] == "node" or cmd[0].endswith("/node")
     assert cmd[1].endswith("weixin_bridge/index.mjs")
 
 
+def test_default_bridge_cmd_resolves_full_node_path(monkeypatch):
+    channel = _make_channel()
+    monkeypatch.setattr("channels.weixin_channel.shutil.which", lambda exe: "/fake/bin/node")
+    cmd = channel._default_bridge_cmd()
+    assert cmd[0] == "/fake/bin/node"
+    assert cmd[1].endswith("weixin_bridge/index.mjs")
+
+
+def test_default_bridge_cmd_falls_back_to_homebrew_when_node_not_on_path(monkeypatch):
+    """macOS GUI-launched apps inherit a minimal PATH without Homebrew, so
+    `shutil.which("node")` misses — we must fall back to common install dirs."""
+    channel = _make_channel()
+    monkeypatch.setattr("channels.weixin_channel.shutil.which", lambda exe: None)
+    monkeypatch.setattr(
+        "channels.weixin_channel.os.path.exists",
+        lambda p: p == "/opt/homebrew/bin/node",
+    )
+    cmd = channel._default_bridge_cmd()
+    assert cmd[0] == "/opt/homebrew/bin/node"
+
+
+def test_bridge_script_path_uses_meipass_when_frozen(monkeypatch):
+    """In the PyInstaller bundle the bridge lives under sys._MEIPASS, not next
+    to the (frozen) source module."""
+    channel = _make_channel()
+    monkeypatch.setattr("channels.weixin_channel.sys.frozen", True, raising=False)
+    monkeypatch.setattr("channels.weixin_channel.sys._MEIPASS", "/tmp/meipass", raising=False)
+    path = channel._bridge_script_path()
+    assert str(path) == "/tmp/meipass/channels/weixin_bridge/index.mjs"
+
+
+def test_start_surfaces_missing_node_as_error_status(monkeypatch):
+    """When node is genuinely absent, Popen raises FileNotFoundError. Instead of
+    silently failing (blank QR), the channel must report an error status."""
+    channel = _make_channel()
+
+    def no_node(cmd, **kwargs):
+        raise FileNotFoundError("node")
+
+    monkeypatch.setattr("channels.weixin_channel.subprocess.Popen", no_node)
+    channel.start()
+    assert channel._running is False
+    assert channel._bridge_proc is None
+    snap = channel.get_status_snapshot()
+    assert snap["login_status"] == "error"
+    assert "Node" in (snap["last_error"] or "")
+
+
 def test_explicit_bridge_cmd_overrides_default():
     from channels.weixin_channel import WeixinChannel