diff --git a/src/page/Meeting/index.tsx b/src/page/Meeting/index.tsx
index 64bb067..2a74915 100644
--- a/src/page/Meeting/index.tsx
+++ b/src/page/Meeting/index.tsx
@@ -174,6 +174,7 @@ const Meeting: React.FC = () => {
   const msgTips = '您不是管理员或发言人，无法开启此功能！'
   useEffect(() => {
     let time: NodeJS.Timeout;
+    let getDesktopCapturerVideoTime: NodeJS.Timeout;
     setUser(userInfo)
     setTimeout(() => {
       if (location.hash.indexOf('/login') === -1) {
@@ -193,11 +194,28 @@ const Meeting: React.FC = () => {
     time = setInterval(() => {
       setCurrentSeconds(currentSeconds++)
     }, 1000)
+    getDesktopCapturerVideoTime = setInterval(() => {
+      setSharedScreenItem((i: any) => {
+        if (i) {
+          agora.getDesktopCapturerVideo({ width: 0, height: 0 }, { width: 0, height: 0 }, false).then(res => {
+            if (res.length) {
+              let row = res.find((item: any) => item.sourceId === i.sourceId)
+              if (!row) {
+                stopScreenCapture()
+                setSharedScreenItem('')
+              }
+            }
+          })
+        }
+        return i
+      })
+    }, 3000)
     return () => {
       window.removeEventListener('customStorageChange', handleCustomStorageChange);
       window.removeEventListener('online', handleNetworkChange);
       window.removeEventListener('offline', handleNetworkChange);
       clearInterval(time)
+      clearInterval(getDesktopCapturerVideoTime)
     };
   }, []);
 
@@ -983,18 +1001,16 @@ const Meeting: React.FC = () => {
   }
   // 获取桌面可共享屏幕的引用
   const getDesktopCapturerVideo = (): void => {
-    agora.getDesktopCapturerVideo().then((res: any) => {
-      if (sharedScreenList.length !== res.length) {
-        res.forEach((item: any) => {
-          if (item.thumbImage.buffer) {
-            item.thumbnailUrl = thumbImageBufferToBase64(item.thumbImage)
-          }
-          if (item.iconImage.buffer) {
-            item.iconDataUrl = thumbImageBufferToBase64(item.iconImage)
-          }
-        })
-        setSharedScreenList(res)
-      }
+    agora.getDesktopCapturerVideo({ width: 300, height: 300 }, { width: 300, height: 300 }, true).then((res: any) => {
+      res.forEach((item: any) => {
+        if (item.thumbImage.buffer) {
+          item.thumbnailUrl = thumbImageBufferToBase64(item.thumbImage)
+        }
+        if (item.iconImage.buffer) {
+          item.iconDataUrl = thumbImageBufferToBase64(item.iconImage)
+        }
+      })
+      setSharedScreenList(res)
     })
   };
   // 设置全员看谁
@@ -1662,7 +1678,7 @@ const Meeting: React.FC = () => {
                     <div className={styles.meetingUserChat} id='meetingUserChat'>
                       <div className={styles.meetingUserChatTitle}>
                         <span>聊天</span>
-                        <img src={ImageUrl.icon18} alt=""  onClick={() => {
+                        <img src={ImageUrl.icon18} alt="" onClick={() => {
                           setStatusList({
                             userList: false,
                             userChatList: false,
diff --git a/src/utils/package/agora.ts b/src/utils/package/agora.ts
index 0fe2c60..0ced7ae 100644
--- a/src/utils/package/agora.ts
+++ b/src/utils/package/agora.ts
@@ -287,8 +287,8 @@ export const agora = {
     }
   },
   // 桌面捕获音频和视频的媒体源的信息
-  getDesktopCapturerVideo: async () => {
-    return rtcEngine.getScreenCaptureSources({ width: 300, height: 300 }, { width: 300, height: 300 }, true);
+  getDesktopCapturerVideo: async (thumbSize: any, iconSize: any, includeScreen: boolean) => {
+    return await rtcEngine.getScreenCaptureSources(thumbSize, iconSize, includeScreen);
   },
   // 共享屏幕采集
   setDesktopCapturerVideo: async (targetSource: any, isComputerAudio: boolean, isFluencyPriority: boolean) => {