diff --git a/frontend/src/components/TitleBar.vue b/frontend/src/components/TitleBar.vue
index e0e98cc..adfe81e 100644
--- a/frontend/src/components/TitleBar.vue
+++ b/frontend/src/components/TitleBar.vue
@@ -41,7 +41,7 @@
 
 <script setup lang="ts">
 import { onBeforeUnmount, onMounted, ref } from 'vue'
-import { BorderOutlined, CloseOutlined, CopyOutlined, MinusOutlined } from '@ant-design/icons-vue'
+import { BorderOutlined, CloseOutlined, MinusOutlined } from '@ant-design/icons-vue'
 import { useTheme } from '@/composables/useTheme'
 import type { UpdateCheckOut } from '@/api'
 import { Service, type VersionOut } from '@/api'
diff --git a/frontend/src/types/electron.d.ts b/frontend/src/types/electron.d.ts
index 5cb20bb..500df9e 100644
--- a/frontend/src/types/electron.d.ts
+++ b/frontend/src/types/electron.d.ts
@@ -9,6 +9,12 @@ export interface ElectronAPI {
   windowMaximize: () => Promise<void>
   windowClose: () => Promise<void>
   windowIsMaximized: () => Promise<boolean>
+  appQuit: () => Promise<void>
+
+  // 进程管理
+  getRelatedProcesses: () => Promise<any[]>
+  killAllProcesses: () => Promise<{ success: boolean; error?: string }>
+  forceExit: () => Promise<{ success: boolean }>
 
   // 初始化相关API
   checkEnvironment: () => Promise<any>
diff --git a/frontend/src/types/electron.ts b/frontend/src/types/electron.ts
index 571c95c..5679ce0 100644
--- a/frontend/src/types/electron.ts
+++ b/frontend/src/types/electron.ts
@@ -16,7 +16,12 @@ export interface ElectronAPI {
 
   // 重启为管理员
   restartAsAdmin: () => Promise<void>
+  appQuit: () => Promise<void>
 
+  // 进程管理
+  getRelatedProcesses: () => Promise<any[]>
+  killAllProcesses: () => Promise<{ success: boolean; error?: string }>
+  forceExit: () => Promise<{ success: boolean }>
   // 环境检查
   checkEnvironment: () => Promise<{
     pythonExists: boolean
diff --git a/frontend/src/views/scheduler/schedulerHandlers.ts b/frontend/src/views/scheduler/schedulerHandlers.ts
index 4c50033..4ace62a 100644
--- a/frontend/src/views/scheduler/schedulerHandlers.ts
+++ b/frontend/src/views/scheduler/schedulerHandlers.ts
@@ -99,7 +99,11 @@ export function handleMainMessage(wsMessage: any) {
     if (!wsMessage || typeof wsMessage !== 'object') return
     const { type, data } = wsMessage
     try {
-        if (type === 'Message' && data && data.type === 'Countdown') {
+        if (type === 'Signal' && data && data.RequestClose) {
+            // 处理后端请求前端关闭的信号
+            console.log('收到后端关闭请求，开始执行应用自杀...')
+            handleRequestClose()
+        } else if (type === 'Message' && data && data.type === 'Countdown') {
             // 存储倒计时消息，供 UI 回放
             storePendingCountdown(data)
             if (uiHooks.onCountdown) {
@@ -118,6 +122,40 @@ export function handleMainMessage(wsMessage: any) {
     }
 }
 
+// 处理后端请求关闭的函数
+async function handleRequestClose() {
+    try {
+        console.log('开始执行前端自杀流程...')
+        
+        // 使用更激进的强制退出方法
+        if (window.electronAPI?.forceExit) {
+            console.log('执行强制退出...')
+            await window.electronAPI.forceExit()
+        } else if (window.electronAPI?.windowClose) {
+            // 备用方法：先尝试正常关闭
+            console.log('执行窗口关闭...')
+            await window.electronAPI.windowClose()
+            setTimeout(async () => {
+                if (window.electronAPI?.appQuit) {
+                    await window.electronAPI.appQuit()
+                }
+            }, 500)
+        } else {
+            // 最后的备用方法
+            console.log('使用页面重载作为最后手段...')
+            window.location.reload()
+        }
+    } catch (error) {
+        console.error('执行自杀流程失败:', error)
+        // 如果所有方法都失败，尝试页面重载
+        try {
+            window.location.reload()
+        } catch (e) {
+            console.error('页面重载也失败:', e)
+        }
+    }
+}
+
 // UI 在挂载时调用，消费并回放 pending 数据
 export function consumePendingTabIds(): string[] {
     return popPendingTabs()
diff --git a/frontend/src/views/scheduler/useSchedulerLogic.ts b/frontend/src/views/scheduler/useSchedulerLogic.ts
index 7b541bc..c2111e1 100644
--- a/frontend/src/views/scheduler/useSchedulerLogic.ts
+++ b/frontend/src/views/scheduler/useSchedulerLogic.ts
@@ -793,6 +793,13 @@ export function useSchedulerLogic() {
     const { type, data } = wsMessage
     console.log('[Scheduler] 收到Main消息:', { type, data })
 
+    // 首先调用 schedulerHandlers 的处理函数，确保 RequestClose 等信号被正确处理
+    try {
+      schedulerHandlers.handleMainMessage(wsMessage)
+    } catch (e) {
+      console.warn('[Scheduler] schedulerHandlers.handleMainMessage error:', e)
+    }
+
     if (type === 'Message' && data && data.type === 'Countdown') {
       // 收到倒计时消息，由全局组件处理
       console.log('[Scheduler] 收到倒计时消息，由全局组件处理:', data)