diff --git a/src/hooks/useClassMonitor.ts b/src/hooks/useClassMonitor.ts
index d9deca0..6b4bd59 100644
--- a/src/hooks/useClassMonitor.ts
+++ b/src/hooks/useClassMonitor.ts
@@ -10,6 +10,7 @@ let monitorTimer: ReturnType<typeof setInterval> | null = null
 let monitorSessionId = ''
 let isUploadingMonitorSnapshot = false
 let monitorState: 0 | 1 = 0
+let closeMonitorTip: (() => void) | null = null
 
 const MONITOR_SNAPSHOT_INTERVAL = 10000
 const MONITOR_MSG_TYPE = 'monitorStart'
@@ -23,6 +24,14 @@ const monitorLog = (...args: unknown[]) => console.log(MONITOR_LOG_PREFIX, ...ar
 const monitorWarn = (...args: unknown[]) => console.warn(MONITOR_LOG_PREFIX, ...args)
 const monitorError = (...args: unknown[]) => console.error(MONITOR_LOG_PREFIX, ...args)
 
+const showMonitorTip = (tips: string) => {
+  closeMonitorTip?.()
+  closeMonitorTip = useTips({
+    tips,
+    showCancel: false,
+  })
+}
+
 const getServerOrigin = () => {
   try {
     return new URL(import.meta.env.VITE_SERVER_URL).origin
@@ -372,10 +381,7 @@ export const stopClassMonitor = (showTip = false) => {
     monitorTimer = null
   }
   if (showTip && isMonitoring) {
-    useTips({
-      tips: '已结束课堂监控',
-      showCancel: false,
-    })
+    showMonitorTip('已结束课堂监控')
   }
   monitorSessionId = ''
   monitorState = 0
@@ -396,10 +402,7 @@ const startClassMonitor = (msg: anyObj) => {
   stopClassMonitor()
   monitorSessionId = sessionId
   monitorState = 1
-  useTips({
-    tips: '已进入课堂监控状态',
-    showCancel: false,
-  })
+  showMonitorTip('已进入课堂监控状态')
   reportMonitorSnapshot(sessionId)
   monitorTimer = setInterval(() => reportMonitorSnapshot(sessionId), MONITOR_SNAPSHOT_INTERVAL)
 }
diff --git a/src/hooks/useTips.ts b/src/hooks/useTips.ts
index 7b08e58..bd41e6d 100644
--- a/src/hooks/useTips.ts
+++ b/src/hooks/useTips.ts
@@ -15,6 +15,7 @@ interface Tips_Config {
 
 export const useTips = (config: Tips_Config) => {
   const container = document.createElement('div')
+  let closed = false
   const dia = createVNode(XDia, {
     modelValue: true,
     title: config.title || '提示',
@@ -31,6 +32,8 @@ export const useTips = (config: Tips_Config) => {
   })
 
   const close = () => {
+    if (closed) return
+    closed = true
     dia.component!.props.modelValue = false
     setTimeout(() => {
       render(null, container)
@@ -39,4 +42,5 @@ export const useTips = (config: Tips_Config) => {
 
   render(dia, container)
   document.querySelector('body')?.appendChild(container.firstElementChild!)
+  return close
 }