diff --git a/Wpf_AiSportsMicrospace/Views/Main.xaml.cs b/Wpf_AiSportsMicrospace/Views/Main.xaml.cs
index 5fcb2e2..f541293 100644
--- a/Wpf_AiSportsMicrospace/Views/Main.xaml.cs
+++ b/Wpf_AiSportsMicrospace/Views/Main.xaml.cs
@@ -57,6 +57,12 @@ namespace Wpf_AiSportsMicrospace.Views
         }
         private void StartFrameProcessing()
         {
+            if (WebcamClient == null)
+            {
+                HandyControl.Controls.MessageBox.Show("摄像头网络异常,请重新连接!");
+                return;
+            }
+
             WebcamClient.OnExtractFrame += frame =>
             {
                 _frameQueue.Enqueue(frame);