diff --git a/backend/api/server.py b/backend/api/server.py
index 0075477..2a38fd0 100644
--- a/backend/api/server.py
+++ b/backend/api/server.py
@@ -2283,15 +2283,27 @@ def _feishu_paths(state: AgentState, account_id: str | None) -> dict[str, Path]:
 
 def _feishu_command() -> list[str]:
     return [
-        'npx',
+        _feishu_npx_executable(),
         '-y',
         f'--registry={FEISHU_NPM_REGISTRY}',
         FEISHU_MCP_PACKAGE,
     ]
 
 
+def _feishu_npx_executable() -> str:
+    explicit = os.environ.get('CLAW_NPX_BIN')
+    if explicit and Path(explicit).expanduser().exists():
+        return str(Path(explicit).expanduser())
+    node_bin_dir = os.environ.get('CLAW_NODE_BIN_DIR')
+    if node_bin_dir:
+        candidate = Path(node_bin_dir).expanduser() / 'npx'
+        if candidate.exists():
+            return str(candidate)
+    return shutil.which('npx') or 'npx'
+
+
 def _feishu_env(paths: dict[str, Path]) -> dict[str, str]:
-    return {
+    env = {
         'HOME': str(paths['home']),
         'XDG_CONFIG_HOME': str(paths['config']),
         'npm_config_cache': str(paths['npm_cache']),
@@ -2299,6 +2311,10 @@ def _feishu_env(paths: dict[str, Path]) -> dict[str, str]:
         'NO_UPDATE_NOTIFIER': 'true',
         'FEISHU_LOGIN_MODE': 'devicecode',
     }
+    node_bin_dir = os.environ.get('CLAW_NODE_BIN_DIR')
+    if node_bin_dir:
+        env['PATH'] = f'{node_bin_dir}{os.pathsep}{os.environ.get("PATH", "")}'
+    return env
 
 
 def _run_feishu_cli(
diff --git a/scripts/start-backend.sh b/scripts/start-backend.sh
index 89d229c..3f7049d 100755
--- a/scripts/start-backend.sh
+++ b/scripts/start-backend.sh
@@ -20,6 +20,15 @@ export OPENAI_API_KEY
 export OPENAI_BASE_URL="${OPENAI_BASE_URL:-http://model.mify.ai.srv/v1}"
 export OPENAI_MODEL="${OPENAI_MODEL:-xiaomi/mimo-v2-flash}"
 
+# 后端也会调用 Node 生态工具，例如 feishu-mcp-pro。systemd 不读取交互式
+# shell 的 nvm 配置，所以需要把部署时记录的 Node 路径显式传给 Python 进程。
+if [[ -n "${CLAW_NODE_BIN_DIR:-}" ]]; then
+	export PATH="${CLAW_NODE_BIN_DIR}:${PATH}"
+fi
+export CLAW_NPM_BIN="${CLAW_NPM_BIN:-}"
+export CLAW_NODE_BIN="${CLAW_NODE_BIN:-}"
+export CLAW_NODE_BIN_DIR="${CLAW_NODE_BIN_DIR:-}"
+
 BACKEND_HOST="${CLAW_BACKEND_HOST:-127.0.0.1}"
 BACKEND_PORT="${CLAW_BACKEND_PORT:-8765}"
 PYTHON_BIN="${CLAW_PYTHON_BIN:-${ROOT_DIR}/.venv/bin/python}"
diff --git a/tests/test_feishu_integration.py b/tests/test_feishu_integration.py
index c4c9a98..d174902 100644
--- a/tests/test_feishu_integration.py
+++ b/tests/test_feishu_integration.py
@@ -114,6 +114,28 @@ class FeishuIntegrationTests(unittest.TestCase):
 
         self.assertEqual(url, 'https://mi.feishu.cn/docx/CZIldpM3QofbbXxxAq1cEininTd')
 
+    def test_feishu_command_uses_deployed_node_bin_dir(self) -> None:
+        with tempfile.TemporaryDirectory() as tmp_dir, patch.dict(
+            gui_server.os.environ,
+            {'CLAW_NODE_BIN_DIR': tmp_dir, 'PATH': ''},
+            clear=False,
+        ):
+            npx_path = Path(tmp_dir) / 'npx'
+            npx_path.write_text('#!/usr/bin/env node\n', encoding='utf-8')
+            npx_path.chmod(0o755)
+
+            command = gui_server._feishu_command()
+            env = gui_server._feishu_env(
+                {
+                    'home': Path(tmp_dir) / 'home',
+                    'config': Path(tmp_dir) / 'config',
+                    'npm_cache': Path(tmp_dir) / 'npm-cache',
+                }
+            )
+
+        self.assertEqual(command[0], str(npx_path))
+        self.assertTrue(env['PATH'].startswith(tmp_dir))
+
     def test_create_online_doc_rejects_jsonl_for_now(self) -> None:
         with tempfile.TemporaryDirectory() as tmp_dir:
             client, state = _build_client(Path(tmp_dir))