diff --git a/src/page/Meeting/ShareScreenWindow/index.tsx b/src/page/Meeting/ShareScreenWindow/index.tsx
index 1863674..91112d0 100644
--- a/src/page/Meeting/ShareScreenWindow/index.tsx
+++ b/src/page/Meeting/ShareScreenWindow/index.tsx
@@ -93,8 +93,15 @@ const ShareScreenWindow: React.FC = () => {
       }
     })
     return () => {
-      clearInterval(timeout)
-      channel.close();
+      setTimeStr(res => {
+        channel.postMessage({
+          type: 'shareScreenWindowTime',
+          shareScreenWindowTime: res
+        });
+        clearInterval(timeout)
+        channel.close();
+        return res
+      })
     };
   }, []);
   const changeCurrentSeconds = (time: number): string => {
diff --git a/src/page/Meeting/index.tsx b/src/page/Meeting/index.tsx
index 0a2d665..baf08c6 100644
--- a/src/page/Meeting/index.tsx
+++ b/src/page/Meeting/index.tsx
@@ -208,6 +208,7 @@ const Meeting: React.FC = () => {
       const {
         type,
         shareScreenWindowfooterListsTitle,
+        shareScreenWindowTime,
         userListWindowPostOpenMicr,
         userListWindowPostOpenCamera,
         userListWindowDeleteRoomManager,
@@ -239,6 +240,9 @@ const Meeting: React.FC = () => {
           await stopScreenCapture()
           await allUserLook(userInfo.uid, userInfo.userName)
           break;
+        case 'shareScreenWindowTime':
+          setCurrentSeconds(shareScreenWindowTime)
+          break;
         case 'shareScreenWindowfooterListsTitle':
           switch (shareScreenWindowfooterListsTitle) {
             case '静音':