diff --git a/electron/main.ts b/electron/main.ts
index 076c16d..0727f62 100644
--- a/electron/main.ts
+++ b/electron/main.ts
@@ -97,6 +97,7 @@ let mainWindowReady = false
 let shouldShowMain = true
 let isAppQuitting = false
 let tray: Tray | null = null
+let isClosePromptVisible = false
 
 // 更新下载状态管理（Issue #294 修复）
 let isDownloadInProgress = false
@@ -354,10 +355,14 @@ function createWindow(options: { autoShow?: boolean } = {}) {
   })
 
   win.on('close', (e) => {
-    if (isAppQuitting) return
-    // 关闭主窗口时隐藏到状态栏而不是退出
+    if (isAppQuitting || win !== mainWindow) return
     e.preventDefault()
-    win.hide()
+    if (isClosePromptVisible) return
+
+    isClosePromptVisible = true
+    win.webContents.send('window:confirmCloseRequested', {
+      canMinimizeToTray: Boolean(tray)
+    })
   })
 
   win.on('closed', () => {
@@ -365,6 +370,7 @@ function createWindow(options: { autoShow?: boolean } = {}) {
 
     mainWindow = null
     mainWindowReady = false
+    isClosePromptVisible = false
 
     if (process.platform !== 'darwin' && !isAppQuitting) {
       destroyNotificationWindow()
@@ -1154,6 +1160,33 @@ function registerIpcHandlers() {
     BrowserWindow.fromWebContents(event.sender)?.close()
   })
 
+  ipcMain.handle('window:respondCloseConfirm', async (_event, action: 'tray' | 'quit' | 'cancel') => {
+    if (!mainWindow || mainWindow.isDestroyed()) {
+      isClosePromptVisible = false
+      return false
+    }
+
+    try {
+      if (action === 'tray') {
+        if (tray) {
+          mainWindow.hide()
+          return true
+        }
+        return false
+      }
+
+      if (action === 'quit') {
+        isAppQuitting = true
+        app.quit()
+        return true
+      }
+
+      return true
+    } finally {
+      isClosePromptVisible = false
+    }
+  })
+
   // 更新窗口控件主题色
   ipcMain.on('window:setTitleBarOverlay', (event, options: { symbolColor: string }) => {
     const win = BrowserWindow.fromWebContents(event.sender)
diff --git a/electron/preload.ts b/electron/preload.ts
index 8a0f823..7d56dba 100644
--- a/electron/preload.ts
+++ b/electron/preload.ts
@@ -94,6 +94,13 @@ contextBridge.exposeInMainWorld('electronAPI', {
       return () => ipcRenderer.removeListener('window:maximizeStateChanged', listener)
     },
     close: () => ipcRenderer.send('window:close'),
+    onCloseConfirmRequested: (callback: (payload: { canMinimizeToTray: boolean }) => void) => {
+      const listener = (_: unknown, payload: { canMinimizeToTray: boolean }) => callback(payload)
+      ipcRenderer.on('window:confirmCloseRequested', listener)
+      return () => ipcRenderer.removeListener('window:confirmCloseRequested', listener)
+    },
+    respondCloseConfirm: (action: 'tray' | 'quit' | 'cancel') =>
+      ipcRenderer.invoke('window:respondCloseConfirm', action),
     openAgreementWindow: () => ipcRenderer.invoke('window:openAgreementWindow'),
     completeOnboarding: () => ipcRenderer.invoke('window:completeOnboarding'),
     openOnboardingWindow: () => ipcRenderer.invoke('window:openOnboardingWindow'),
diff --git a/src/App.tsx b/src/App.tsx
index e287a68..8b9a903 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -37,6 +37,7 @@ import LockScreen from './components/LockScreen'
 import { GlobalSessionMonitor } from './components/GlobalSessionMonitor'
 import { BatchTranscribeGlobal } from './components/BatchTranscribeGlobal'
 import { BatchImageDecryptGlobal } from './components/BatchImageDecryptGlobal'
+import WindowCloseDialog from './components/WindowCloseDialog'
 
 function RouteStateRedirect({ to }: { to: string }) {
   const location = useLocation()
@@ -85,6 +86,8 @@ function App() {
   const isExportRoute = routeLocation.pathname === '/export'
   const [themeHydrated, setThemeHydrated] = useState(false)
   const [sidebarCollapsed, setSidebarCollapsed] = useState(false)
+  const [showCloseDialog, setShowCloseDialog] = useState(false)
+  const [canMinimizeToTray, setCanMinimizeToTray] = useState(false)
 
   // 锁定状态
   // const [isLocked, setIsLocked] = useState(false) // Moved to store
@@ -107,6 +110,15 @@ function App() {
     }
   }, [location])
 
+  useEffect(() => {
+    const removeCloseConfirmListener = window.electronAPI.window.onCloseConfirmRequested((payload) => {
+      setCanMinimizeToTray(Boolean(payload.canMinimizeToTray))
+      setShowCloseDialog(true)
+    })
+
+    return () => removeCloseConfirmListener()
+  }, [])
+
   useEffect(() => {
     const root = document.documentElement
     const body = document.body
@@ -315,6 +327,15 @@ function App() {
     setUpdateInfo(null)
   }
 
+  const handleWindowCloseAction = async (action: 'tray' | 'quit' | 'cancel') => {
+    setShowCloseDialog(false)
+    try {
+      await window.electronAPI.window.respondCloseConfirm(action)
+    } catch (error) {
+      console.error('处理关闭确认失败:', error)
+    }
+  }
+
   // 启动时自动检查配置并连接数据库
   useEffect(() => {
     if (isAgreementWindow || isOnboardingWindow) return
@@ -593,6 +614,14 @@ function App() {
         progress={downloadProgress}
       />
 
+      <WindowCloseDialog
+        open={showCloseDialog}
+        canMinimizeToTray={canMinimizeToTray}
+        onTray={() => handleWindowCloseAction('tray')}
+        onQuit={() => handleWindowCloseAction('quit')}
+        onCancel={() => handleWindowCloseAction('cancel')}
+      />
+
       <div className="main-layout">
         <Sidebar collapsed={sidebarCollapsed} />
         <main className="content">
diff --git a/src/components/WindowCloseDialog.scss b/src/components/WindowCloseDialog.scss
new file mode 100644
index 0000000..282ac55
--- /dev/null
+++ b/src/components/WindowCloseDialog.scss
@@ -0,0 +1,240 @@
+.window-close-dialog-overlay {
+  position: fixed;
+  inset: 0;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  padding: 32px;
+  background:
+    radial-gradient(circle at top, rgba(36, 42, 54, 0.18), transparent 48%),
+    rgba(7, 10, 18, 0.56);
+  backdrop-filter: blur(10px);
+  z-index: 3000;
+  animation: windowCloseDialogFadeIn 0.2s ease-out;
+}
+
+.window-close-dialog {
+  width: min(560px, 100%);
+  border: 1px solid color-mix(in srgb, var(--border-color) 78%, transparent);
+  border-radius: 24px;
+  background:
+    linear-gradient(180deg, color-mix(in srgb, var(--bg-primary) 94%, white 6%) 0%, var(--bg-primary) 100%);
+  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.32);
+  overflow: hidden;
+  position: relative;
+  animation: windowCloseDialogSlideUp 0.24s cubic-bezier(0.16, 1, 0.3, 1);
+}
+
+.window-close-dialog-header {
+  padding: 28px 30px 18px;
+  border-bottom: 1px solid color-mix(in srgb, var(--border-color) 72%, transparent);
+
+  .window-close-dialog-kicker {
+    display: inline-flex;
+    align-items: center;
+    padding: 6px 10px;
+    border-radius: 999px;
+    background: color-mix(in srgb, var(--primary) 12%, transparent);
+    color: var(--primary);
+    font-size: 12px;
+    font-weight: 700;
+    letter-spacing: 0.08em;
+    text-transform: uppercase;
+  }
+
+  h2 {
+    margin: 14px 0 8px;
+    font-size: 26px;
+    line-height: 1.1;
+    color: var(--text-primary);
+  }
+
+  p {
+    margin: 0;
+    font-size: 14px;
+    line-height: 1.7;
+    color: var(--text-secondary);
+  }
+}
+
+.window-close-dialog-body {
+  padding: 20px 24px 10px;
+  display: flex;
+  flex-direction: column;
+  gap: 12px;
+}
+
+.window-close-dialog-option {
+  width: 100%;
+  display: flex;
+  align-items: flex-start;
+  gap: 14px;
+  padding: 18px 18px 18px 16px;
+  border: 1px solid color-mix(in srgb, var(--border-color) 72%, transparent);
+  border-radius: 18px;
+  background:
+    linear-gradient(180deg, color-mix(in srgb, var(--bg-secondary) 86%, white 14%) 0%, var(--bg-secondary) 100%);
+  color: inherit;
+  cursor: pointer;
+  text-align: left;
+  transition:
+    transform 0.18s ease,
+    border-color 0.18s ease,
+    box-shadow 0.18s ease,
+    background 0.18s ease;
+
+  &:hover {
+    transform: translateY(-1px);
+    border-color: color-mix(in srgb, var(--primary) 34%, var(--border-color));
+    box-shadow: 0 14px 28px rgba(0, 0, 0, 0.1);
+  }
+
+  &:active {
+    transform: translateY(0);
+  }
+
+  &.is-danger:hover {
+    border-color: rgba(205, 73, 73, 0.42);
+  }
+}
+
+.window-close-dialog-option-icon {
+  width: 42px;
+  height: 42px;
+  flex: 0 0 42px;
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  border-radius: 14px;
+  background: color-mix(in srgb, var(--primary) 14%, transparent);
+  color: var(--primary);
+}
+
+.window-close-dialog-option.is-danger .window-close-dialog-option-icon {
+  background: rgba(205, 73, 73, 0.12);
+  color: #cd4949;
+}
+
+.window-close-dialog-option-text {
+  display: flex;
+  flex-direction: column;
+  gap: 6px;
+  min-width: 0;
+
+  strong {
+    font-size: 16px;
+    font-weight: 700;
+    color: var(--text-primary);
+  }
+
+  span {
+    font-size: 13px;
+    line-height: 1.6;
+    color: var(--text-secondary);
+  }
+}
+
+.window-close-dialog-actions {
+  padding: 8px 24px 24px;
+  display: flex;
+  justify-content: flex-end;
+}
+
+.window-close-dialog-cancel {
+  min-width: 112px;
+  padding: 12px 18px;
+  border: 1px solid color-mix(in srgb, var(--border-color) 76%, transparent);
+  border-radius: 999px;
+  background: var(--bg-tertiary);
+  color: var(--text-secondary);
+  cursor: pointer;
+  transition:
+    background 0.18s ease,
+    color 0.18s ease,
+    border-color 0.18s ease;
+
+  &:hover {
+    background: var(--bg-hover);
+    color: var(--text-primary);
+    border-color: color-mix(in srgb, var(--primary) 24%, var(--border-color));
+  }
+}
+
+.window-close-dialog-close {
+  position: absolute;
+  top: 18px;
+  right: 18px;
+  width: 34px;
+  height: 34px;
+  border: none;
+  border-radius: 999px;
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  background: color-mix(in srgb, var(--bg-secondary) 84%, transparent);
+  color: var(--text-secondary);
+  cursor: pointer;
+  transition:
+    background 0.18s ease,
+    color 0.18s ease,
+    transform 0.18s ease;
+
+  &:hover {
+    background: var(--bg-hover);
+    color: var(--text-primary);
+    transform: rotate(90deg);
+  }
+}
+
+@media (max-width: 640px) {
+  .window-close-dialog-overlay {
+    padding: 16px;
+    align-items: flex-end;
+  }
+
+  .window-close-dialog {
+    border-radius: 24px 24px 18px 18px;
+  }
+
+  .window-close-dialog-header {
+    padding: 24px 22px 16px;
+
+    h2 {
+      font-size: 22px;
+    }
+  }
+
+  .window-close-dialog-body {
+    padding: 18px 18px 10px;
+  }
+
+  .window-close-dialog-actions {
+    padding: 8px 18px 18px;
+  }
+
+  .window-close-dialog-cancel {
+    width: 100%;
+  }
+}
+
+@keyframes windowCloseDialogFadeIn {
+  from {
+    opacity: 0;
+  }
+
+  to {
+    opacity: 1;
+  }
+}
+
+@keyframes windowCloseDialogSlideUp {
+  from {
+    transform: translateY(24px) scale(0.98);
+    opacity: 0;
+  }
+
+  to {
+    transform: translateY(0) scale(1);
+    opacity: 1;
+  }
+}
diff --git a/src/components/WindowCloseDialog.tsx b/src/components/WindowCloseDialog.tsx
new file mode 100644
index 0000000..3c992c9
--- /dev/null
+++ b/src/components/WindowCloseDialog.tsx
@@ -0,0 +1,100 @@
+import { Minimize2, Power, X } from 'lucide-react'
+import { useEffect } from 'react'
+import './WindowCloseDialog.scss'
+
+interface WindowCloseDialogProps {
+  open: boolean
+  canMinimizeToTray: boolean
+  onTray: () => void
+  onQuit: () => void
+  onCancel: () => void
+}
+
+export default function WindowCloseDialog({
+  open,
+  canMinimizeToTray,
+  onTray,
+  onQuit,
+  onCancel
+}: WindowCloseDialogProps) {
+  useEffect(() => {
+    if (!open) return
+
+    const handleKeyDown = (event: KeyboardEvent) => {
+      if (event.key === 'Escape') {
+        event.preventDefault()
+        onCancel()
+      }
+    }
+
+    window.addEventListener('keydown', handleKeyDown)
+    return () => window.removeEventListener('keydown', handleKeyDown)
+  }, [open, onCancel])
+
+  if (!open) return null
+
+  return (
+    <div className="window-close-dialog-overlay" onClick={onCancel}>
+      <div
+        className="window-close-dialog"
+        onClick={(event) => event.stopPropagation()}
+        role="dialog"
+        aria-modal="true"
+        aria-labelledby="window-close-dialog-title"
+      >
+        <button
+          type="button"
+          className="window-close-dialog-close"
+          onClick={onCancel}
+          aria-label="关闭提示"
+        >
+          <X size={18} />
+        </button>
+
+        <div className="window-close-dialog-header">
+          <span className="window-close-dialog-kicker">退出行为</span>
+          <h2 id="window-close-dialog-title">关闭 WeFlow</h2>
+          <p>
+            {canMinimizeToTray
+              ? '你可以保留后台进程与本地 API，或者直接完全退出应用。'
+              : '当前系统托盘不可用，本次只能完全退出应用。'}
+          </p>
+        </div>
+
+        <div className="window-close-dialog-body">
+          {canMinimizeToTray && (
+            <button type="button" className="window-close-dialog-option" onClick={onTray}>
+              <span className="window-close-dialog-option-icon">
+                <Minimize2 size={18} />
+              </span>
+              <span className="window-close-dialog-option-text">
+                <strong>最小化到系统托盘</strong>
+                <span>继续保留后台进程和本地 API，稍后可从托盘恢复。</span>
+              </span>
+            </button>
+          )}
+
+          <button
+            type="button"
+            className="window-close-dialog-option is-danger"
+            onClick={onQuit}
+          >
+            <span className="window-close-dialog-option-icon">
+              <Power size={18} />
+            </span>
+            <span className="window-close-dialog-option-text">
+              <strong>完全关闭</strong>
+              <span>结束 WeFlow 进程，并停止当前保留的本地 API。</span>
+            </span>
+          </button>
+        </div>
+
+        <div className="window-close-dialog-actions">
+          <button type="button" className="window-close-dialog-cancel" onClick={onCancel}>
+            取消
+          </button>
+        </div>
+      </div>
+    </div>
+  )
+}
diff --git a/src/types/electron.d.ts b/src/types/electron.d.ts
index 7bfd316..e9023da 100644
--- a/src/types/electron.d.ts
+++ b/src/types/electron.d.ts
@@ -14,6 +14,8 @@ export interface ElectronAPI {
     isMaximized: () => Promise<boolean>
     onMaximizeStateChanged: (callback: (isMaximized: boolean) => void) => () => void
     close: () => void
+    onCloseConfirmRequested: (callback: (payload: { canMinimizeToTray: boolean }) => void) => () => void
+    respondCloseConfirm: (action: 'tray' | 'quit' | 'cancel') => Promise<boolean>
     openAgreementWindow: () => Promise<boolean>
     completeOnboarding: () => Promise<boolean>
     openOnboardingWindow: () => Promise<boolean>