diff --git a/src/utils/package/agora.ts b/src/utils/package/agora.ts
index bedfafa..4cb2c68 100644
--- a/src/utils/package/agora.ts
+++ b/src/utils/package/agora.ts
@@ -31,7 +31,11 @@ const agora = {
     });
     if (bool) {
       const setting = JSON.parse(storage.getItem('setting') as string)
-      if (setting.videoDeviceId) agora.setVideoDeviceManager(setting.videoDeviceId) //通过设备 ID 指定视频采集设备。
+      if (setting.videoDeviceId) {
+        agora.setVideoDeviceManager(setting.videoDeviceId) //通过设备 ID 指定视频采集设备。
+      } else {
+        agora.setVideoDeviceManager(rtcEngine.getVideoDeviceManager().getDevice())
+      }
       if (setting.playBackDeviceId) agora.setPlaybackDevice(setting.playBackDeviceId) //指定播放设备
       if (setting.playBackVolume) agora.setPlaybackDeviceVolume(setting.playBackVolume) // 设置播放设备音量
       if (setting.ecordingDeviceId) agora.setRecordingDevice(setting.ecordingDeviceId) // 设置音频采集设备