diff --git a/src/components/UserVideo/index.tsx b/src/components/UserVideo/index.tsx
index 2aa60e4..157ddcd 100644
--- a/src/components/UserVideo/index.tsx
+++ b/src/components/UserVideo/index.tsx
@@ -77,6 +77,7 @@ const UserVideo: React.FC = () => {
   };
   // 获取轮训用户
   const getPolling = async (): Promise<void> => {
+    setUserList([])
     GetPolling(state.channelId?.split('1')[0] as string, from.viewPeopleValue).then((res: any) => {
       if (res.code === 200) {
         setUserList(res.data)
diff --git a/src/page/Meeting/index.tsx b/src/page/Meeting/index.tsx
index e77b48f..a3f8bfc 100644
--- a/src/page/Meeting/index.tsx
+++ b/src/page/Meeting/index.tsx
@@ -571,7 +571,7 @@ const Meeting: React.FC = () => {
       tokenA: state.tokenA,
     })
     if (userInfo.roleId === '1') {
-      await agora.allJoinChannelEx()
+      await agora.allJoinChannelEx(true)
     }
   }
   // 状态更新
diff --git a/src/utils/package/agora.ts b/src/utils/package/agora.ts
index 04f813f..1234925 100644
--- a/src/utils/package/agora.ts
+++ b/src/utils/package/agora.ts
@@ -236,13 +236,13 @@ export const agora = {
     );
   },
   // 所有用户加入的第二个房间
-  allJoinChannelEx: async () => {
+  allJoinChannelEx: async (bool: boolean = false) => {
     await agora.startCameraCapture()
     await rtcEngine.joinChannelEx(
       option.tokenA,
       { channelId: option.channelId + '1', localUid: Number('1' + option.screenShareId) },
       {
-        clientRoleType: ClientRoleType.ClientRoleBroadcaster,  //用户角色  ClientRoleBroadcaster 主播  ClientRoleAudience 观众
+        clientRoleType: bool ? ClientRoleType.ClientRoleAudience : ClientRoleType.ClientRoleBroadcaster ,  //用户角色  ClientRoleBroadcaster 主播  ClientRoleAudience 观众
         autoSubscribeAudio: false,//设置是否自动订阅所有音频流
         autoSubscribeVideo: true,//设置是否自动订阅所有视频流
         publishMicrophoneTrack: false,//设置是否发布麦克风采集到的音频