diff --git a/src/main/index.ts b/src/main/index.ts
index f34b042..949d29d 100644
--- a/src/main/index.ts
+++ b/src/main/index.ts
@@ -1175,6 +1175,9 @@ app.whenReady().then(async () => {
   )
   ipcMain.handle('group-exit-monitor:checkNow', () => groupExitMonitorService.checkNow())
   ipcMain.handle('group-exit-monitor:clearEvents', () => groupExitMonitorService.clearEvents())
+  ipcMain.handle('group-exit-monitor:resendEvent', (_, eventId: string) =>
+    groupExitMonitorService.resendEvent(eventId)
+  )
   ipcMain.handle('group-exit-monitor:markRead', (_, readAt?: number) =>
     groupExitMonitorService.markRead(readAt)
   )
diff --git a/src/main/services/group-exit-monitor-service.ts b/src/main/services/group-exit-monitor-service.ts
index ca5604e..1b5772f 100644
--- a/src/main/services/group-exit-monitor-service.ts
+++ b/src/main/services/group-exit-monitor-service.ts
@@ -602,7 +602,8 @@ class GroupExitMonitorService {
 
   private async notifyGroup(
     group: GroupSnapshotRecord,
-    event: GroupExitMonitorEvent
+    event: GroupExitMonitorEvent,
+    idempotencyKey = `member_left_notification:${event.id}`
   ): Promise<void> {
     event.notificationStatus = 'pending'
     event.notification = { status: 'pending' }
@@ -610,7 +611,7 @@ class GroupExitMonitorService {
     this.broadcast()
     try {
       const result = await this.actionGateway.execute({
-        idempotencyKey: `member_left_notification:${event.id}`,
+        idempotencyKey,
         origin: 'member_monitor',
         purpose: 'member_left_notification',
         triggerType: 'automation',
@@ -665,6 +666,17 @@ class GroupExitMonitorService {
     }
   }
 
+  async resendEvent(eventId: string): Promise<GroupExitMonitorState> {
+    const event = this.events.find((item) => item.id === eventId)
+    if (!event) throw new Error('退群动态不存在')
+    await this.notifyGroup(
+      { roomId: event.roomId, groupName: event.groupName } as GroupSnapshotRecord,
+      event,
+      `member_left_notification:${event.id}:retry:${Date.now()}`
+    )
+    return this.getState()
+  }
+
   private filePath(): string {
     return path.join(app.getPath('userData'), 'group-exit-monitor.json')
   }
diff --git a/src/preload/index.d.ts b/src/preload/index.d.ts
index 28dab2c..e458645 100644
--- a/src/preload/index.d.ts
+++ b/src/preload/index.d.ts
@@ -275,6 +275,7 @@ declare global {
       setGroupExitMonitorNotificationTemplate: (template: string) => Promise<GroupExitMonitorState>
       checkGroupExitMonitorNow: () => Promise<GroupExitMonitorState>
       clearGroupExitMonitorEvents: () => Promise<GroupExitMonitorState>
+      resendGroupExitMonitorEvent: (eventId: string) => Promise<GroupExitMonitorState>
       markGroupExitMonitorRead: (readAt?: number) => Promise<GroupExitMonitorState>
       listWechatActionLogs: () => Promise<ActionLogEntry[]>
       onGroupExitMonitorState: (callback: (state: GroupExitMonitorState) => void) => () => void
diff --git a/src/preload/index.ts b/src/preload/index.ts
index 4ccf673..26a36e8 100644
--- a/src/preload/index.ts
+++ b/src/preload/index.ts
@@ -155,6 +155,8 @@ const api = {
     ipcRenderer.invoke('group-exit-monitor:checkNow'),
   clearGroupExitMonitorEvents: (): Promise<GroupExitMonitorState> =>
     ipcRenderer.invoke('group-exit-monitor:clearEvents'),
+  resendGroupExitMonitorEvent: (eventId: string): Promise<GroupExitMonitorState> =>
+    ipcRenderer.invoke('group-exit-monitor:resendEvent', eventId),
   markGroupExitMonitorRead: (readAt?: number): Promise<GroupExitMonitorState> =>
     ipcRenderer.invoke('group-exit-monitor:markRead', readAt),
   listWechatActionLogs: (): Promise<ActionLogEntry[]> =>
diff --git a/src/renderer/src/features/group-exit-monitor/GroupExitMonitorWorkspace.tsx b/src/renderer/src/features/group-exit-monitor/GroupExitMonitorWorkspace.tsx
index 5a195f5..41c49f3 100644
--- a/src/renderer/src/features/group-exit-monitor/GroupExitMonitorWorkspace.tsx
+++ b/src/renderer/src/features/group-exit-monitor/GroupExitMonitorWorkspace.tsx
@@ -85,10 +85,14 @@ const sendCapabilityTone = (capability: PersonalWechatSendCapability | null): st
 
 function EventNotificationStatus({
   event,
-  onOpenSendSettings
+  onOpenSendSettings,
+  onResend,
+  resending
 }: {
   event: GroupExitMonitorState['events'][number]
   onOpenSendSettings?: () => void
+  onResend?: () => void
+  resending?: boolean
 }): React.ReactElement {
   const status = event.notificationStatus || event.notification?.status || 'not_requested'
   const details =
@@ -120,6 +124,11 @@ function EventNotificationStatus({
           去设置
         </Button>
       ) : null}
+      {status !== 'sent' && status !== 'pending' && onResend ? (
+        <Button variant="link" size="sm" onClick={onResend} disabled={resending}>
+          {resending ? '发送中...' : '重新发送'}
+        </Button>
+      ) : null}
     </div>
   )
 }
@@ -455,6 +464,7 @@ export function GroupExitMonitorWorkspace({
   const [templateError, setTemplateError] = React.useState('')
   const [selectedRoomId, setSelectedRoomId] = React.useState('all')
   const [view, setView] = React.useState<'events' | 'manage'>('events')
+  const [resendingEventId, setResendingEventId] = React.useState<string | null>(null)
   const [manageKeyword, setManageKeyword] = React.useState('')
   const [manageFilter, setManageFilter] = React.useState<GroupSelectionFilter>('all')
   const [selectedManageRoomIds, setSelectedManageRoomIds] = React.useState<Set<string>>(
@@ -594,6 +604,19 @@ export function GroupExitMonitorWorkspace({
     }
   }
 
+  const resendEvent = async (eventId: string): Promise<void> => {
+    if (resendingEventId || typeof window.api.resendGroupExitMonitorEvent !== 'function') return
+    setResendingEventId(eventId)
+    setError('')
+    try {
+      setState(await window.api.resendGroupExitMonitorEvent(eventId))
+    } catch (reason) {
+      setError(reason instanceof Error ? reason.message : String(reason))
+    } finally {
+      setResendingEventId(null)
+    }
+  }
+
   const saveGroups = async (): Promise<void> => {
     const api = window.api
     if (saving || !dbReady || typeof api.setGroupExitMonitorGroups !== 'function') return
@@ -857,6 +880,8 @@ export function GroupExitMonitorWorkspace({
                       <EventNotificationStatus
                         event={event}
                         onOpenSendSettings={onOpenSendSettings}
+                        onResend={() => void resendEvent(event.id)}
+                        resending={resendingEventId === event.id}
                       />
                       <dl className="exit-monitor-event-details">
                         <div>