diff --git a/JianGongYun/TRTC/Windows/LiveWindowRightBottomBlock.xaml.cs b/JianGongYun/TRTC/Windows/LiveWindowRightBottomBlock.xaml.cs
index 33a3b61..f938b9f 100644
--- a/JianGongYun/TRTC/Windows/LiveWindowRightBottomBlock.xaml.cs
+++ b/JianGongYun/TRTC/Windows/LiveWindowRightBottomBlock.xaml.cs
@@ -77,7 +77,10 @@ namespace JianGongYun.TRTC.Windows
 
         private void Window_MouseDown(object sender, MouseButtonEventArgs e)
         {
-            this.DragMove();
+            if (e.ChangedButton == MouseButton.Left)
+            {
+                this.DragMove();
+            }
         }
     }
 }