diff --git a/src/core/service_manager.rs b/src/core/service_manager.rs
index a877987..48d6e78 100644
--- a/src/core/service_manager.rs
+++ b/src/core/service_manager.rs
@@ -358,9 +358,12 @@ impl ServiceManager {
         self.running = true;
 
         while self.running {
-            let envelope = match self.rx.recv() {
+            // 使用 recv_timeout 而非 recv，确保外部信号（如 Ctrl+C 置 running=false）
+            // 能在超时后被检查到，避免永久阻塞等待下一条消息。
+            let envelope = match self.rx.recv_timeout(std::time::Duration::from_millis(200)) {
                 Ok(env) => env,
-                Err(_) => {
+                Err(mpsc::RecvTimeoutError::Timeout) => continue,
+                Err(mpsc::RecvTimeoutError::Disconnected) => {
                     println!("[ServiceManager] 所有发送端已关闭，退出");
                     break;
                 }
@@ -763,6 +766,7 @@ impl ServiceManager {
             Message::Shutdown => {
                 println!("[ServiceManager] 收到 Shutdown 指令");
                 self.broadcast_message(Message::Shutdown);
+                self.running = false;
             }
             Message::WifiResult(payload) => {
                 self.broadcast_message(Message::WifiResult(payload));
diff --git a/src/main.rs b/src/main.rs
index e62c8b8..5562f84 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -113,10 +113,17 @@ fn main() -> Result<()> {
     // 设置 Ctrl+C 信号处理
     let running = Arc::new(AtomicBool::new(true));
     let r = running.clone();
+    let shutdown_tx = manager.sender();
 
     ctrlc::set_handler(move || {
         println!("\n收到退出信号，正在关闭...");
         r.store(false, Ordering::SeqCst);
+        // 注入 Shutdown 消息，唤醒主消息循环并触发优雅停机
+        let _ = shutdown_tx.send(showen_v2::core::message::Envelope {
+            from: "signal".to_string(),
+            to: showen_v2::core::message::Destination::Manager,
+            message: showen_v2::core::message::Message::Shutdown,
+        });
     })?;
 
     println!("启动所有插件...");