diff --git a/Assets/Scripts/UI/UIPointQuestion.cs b/Assets/Scripts/UI/UIPointQuestion.cs
index 49c43b95..f9cb7d81 100644
--- a/Assets/Scripts/UI/UIPointQuestion.cs
+++ b/Assets/Scripts/UI/UIPointQuestion.cs
@@ -28,6 +28,8 @@ namespace QFramework.Example
         protected override void OnOpen(IUIData uiData = null)
         {
             mData = uiData as UIPointQuestionData ?? new UIPointQuestionData();
+
+            Content.RemoveAllChildren();
             var paths = mData.paths.Split(',');
             for (int i = 0; i < paths.Length; i++)
             {
@@ -60,11 +62,11 @@ namespace QFramework.Example
 
         protected override void OnHide()
         {
+            pointMap.Clear();
         }
 
         protected override void OnClose()
         {
-            pointMap.Clear();
         }
     }
 }