diff --git a/Assets/Art/UIPrefab/UIOperationList.prefab b/Assets/Art/UIPrefab/UIOperationList.prefab
index e387fe22..1f4d179f 100644
--- a/Assets/Art/UIPrefab/UIOperationList.prefab
+++ b/Assets/Art/UIPrefab/UIOperationList.prefab
@@ -465,8 +465,8 @@ RectTransform:
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
   m_AnchorMin: {x: 0, y: 0}
   m_AnchorMax: {x: 0, y: 1}
-  m_AnchoredPosition: {x: 131.91986, y: 0}
-  m_SizeDelta: {x: 263.8398, y: -752.1277}
+  m_AnchoredPosition: {x: 216.55383, y: 0}
+  m_SizeDelta: {x: 433.1077, y: -752.1277}
   m_Pivot: {x: 0.5, y: 0.5}
 --- !u!222 &9008854919363526693
 CanvasRenderer:
@@ -725,7 +725,7 @@ MonoBehaviour:
   m_EditorClassIdentifier: 
   m_Material: {fileID: 0}
   m_Color: {r: 1, g: 1, b: 1, a: 0}
-  m_RaycastTarget: 1
+  m_RaycastTarget: 0
   m_RaycastPadding: {x: 0, y: 0, z: 0, w: 0}
   m_Maskable: 1
   m_OnCullStateChanged:
@@ -1274,7 +1274,7 @@ MonoBehaviour:
   m_EditorClassIdentifier: 
   m_Material: {fileID: 0}
   m_Color: {r: 1, g: 1, b: 1, a: 1}
-  m_RaycastTarget: 1
+  m_RaycastTarget: 0
   m_RaycastPadding: {x: 0, y: 0, z: 0, w: 0}
   m_Maskable: 1
   m_OnCullStateChanged:
diff --git a/Assets/Scripts/UI/UIOperationList.cs b/Assets/Scripts/UI/UIOperationList.cs
index 82693fb9..e767697a 100644
--- a/Assets/Scripts/UI/UIOperationList.cs
+++ b/Assets/Scripts/UI/UIOperationList.cs
@@ -20,7 +20,7 @@ namespace QFramework.Example
         protected override void OnInit(IUIData uiData = null)
         {
             mData = uiData as UIOperationListData ?? new UIOperationListData();
-            TypeEventSystem.Global.Register<OnModuleQuit>((arg)=>Hide()).UnRegisterWhenGameObjectDestroyed(gameObject);
+            TypeEventSystem.Global.Register<OnModuleQuit>((arg) => Hide()).UnRegisterWhenGameObjectDestroyed(gameObject);
         }
 
         private void OnStepChanged(StepStatusOnChange change)
@@ -100,14 +100,17 @@ namespace QFramework.Example
                 subContent.gameObject.SetActive(false);
                 btn.name = btns.Count.ToString();
                 btns.Add(btn);
+                arrow.gameObject.SetActive(subContent.transform.childCount > 0);
                 btn.onClick.AddListener(() =>
                 {
-                    subContent.SetActive(!subContent.activeSelf);
+                    if (subContent.transform.childCount > 0)
+                    {
+                        subContent.SetActive(!subContent.activeSelf);
+                    }
                     if (op.freeStep)
                     {
                         if (highIcon.color != highColor)
                         {
-
                             TypeEventSystem.Global.Send<StepExecute>(new StepExecute() { index = int.Parse(btn.name) });
                         }
                     }