diff --git a/src/utils/package/agora.ts b/src/utils/package/agora.ts
index 2685bd1..af1b6bc 100644
--- a/src/utils/package/agora.ts
+++ b/src/utils/package/agora.ts
@@ -129,15 +129,29 @@ const agora = {
   },
   // 更新频道信息
   updateChannelMediaOptions: (bool: boolean) => {
-    rtcEngine.updateChannelMediaOptions({
-      channelProfile: ChannelProfileType.ChannelProfileLiveBroadcasting, //设置频道场景为直播场景
-      clientRoleType: ClientRoleType.ClientRoleBroadcaster, //设置用户角色为主播；如果要将用户角色设置为观众，保持默认值即可
-      publishMicrophoneTrack: true, //发布麦克风采集的音频
-      publishCameraTrack: true, //发布摄像头采集的视频
-      publishScreenTrack: true, //设置是否发布屏幕采集的视频
-      autoSubscribeAudio: true, //自动订阅所有音频流
-      autoSubscribeVideo: true, //自动订阅所有视频流
-    })
+    if (bool) {
+      // 摄像头
+      rtcEngine.updateChannelMediaOptions({
+        channelProfile: ChannelProfileType.ChannelProfileLiveBroadcasting, //设置频道场景为直播场景
+        clientRoleType: ClientRoleType.ClientRoleBroadcaster, //设置用户角色为主播；如果要将用户角色设置为观众，保持默认值即可
+        publishMicrophoneTrack: true, //发布麦克风采集的音频
+        publishCameraTrack: true, //发布摄像头采集的视频
+        publishScreenTrack: false, //设置是否发布屏幕采集的视频
+        autoSubscribeAudio: true, //自动订阅所有音频流
+        autoSubscribeVideo: true, //自动订阅所有视频流
+      })
+    } else {
+      // 屏幕
+      rtcEngine.updateChannelMediaOptions({
+        channelProfile: ChannelProfileType.ChannelProfileLiveBroadcasting, //设置频道场景为直播场景
+        clientRoleType: ClientRoleType.ClientRoleBroadcaster, //用户角色 1主播 2观众
+        publishMicrophoneTrack: true, //设置是否发布麦克风采集到的音频
+        publishCameraTrack: false, //设置是否发布摄像头采集的视频
+        publishScreenTrack: true, //设置是否发布屏幕采集的视频
+        autoSubscribeAudio: true, //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
+      })
+    }
   },
   // 停止共享屏幕
   stopScreenCapture: () => {