diff --git a/Assets/XCharts/Runtime/Helper/LegendHelper.cs b/Assets/XCharts/Runtime/Helper/LegendHelper.cs
index e115e453..bae8e964 100644
--- a/Assets/XCharts/Runtime/Helper/LegendHelper.cs
+++ b/Assets/XCharts/Runtime/Helper/LegendHelper.cs
@@ -46,8 +46,7 @@ namespace XCharts
             var objAnchorMin = legend.location.runtimeAnchorMin;
             var objAnchorMax = legend.location.runtimeAnchorMax;
             var objPivot = legend.location.runtimePivot;
-
-            var btnObj = ChartHelper.AddObject(objName, parent, objAnchorMin, objAnchorMax, objPivot, sizeDelta);
+            var btnObj = ChartHelper.AddObject(objName, parent, objAnchorMin, objAnchorMax, objPivot, sizeDelta, i);
             var iconObj = ChartHelper.AddObject("icon", btnObj.transform, anchorMin, anchorMax, pivot, iconSizeDelta);
             var contentObj = ChartHelper.AddObject("content", btnObj.transform, anchorMin, anchorMax, pivot, sizeDelta);
             var img = ChartHelper.GetOrAddComponent<Image>(btnObj);
diff --git a/Assets/XCharts/Runtime/Internal/BaseChart.cs b/Assets/XCharts/Runtime/Internal/BaseChart.cs
index c2ec4bca..b6097bec 100644
--- a/Assets/XCharts/Runtime/Internal/BaseChart.cs
+++ b/Assets/XCharts/Runtime/Internal/BaseChart.cs
@@ -291,7 +291,7 @@ namespace XCharts
                 totalLegend++;
             }
             m_Legend.RemoveButton();
-            ChartHelper.DestroyAllChildren(legendObject.transform);
+            ChartHelper.HideAllObject(legendObject);
             if (!m_Legend.show) return;
             for (int i = 0; i < datas.Count; i++)
             {
diff --git a/Assets/XCharts/Runtime/Utility/ChartHelper.cs b/Assets/XCharts/Runtime/Utility/ChartHelper.cs
index 67ef70f5..f11c5139 100644
--- a/Assets/XCharts/Runtime/Utility/ChartHelper.cs
+++ b/Assets/XCharts/Runtime/Utility/ChartHelper.cs
@@ -108,7 +108,6 @@ namespace XCharts
                 if (go != null)
                 {
                     GameObject.DestroyImmediate(go.gameObject);
-                    //GameObject.Destroy(go.gameObject);
                 }
             }
         }
@@ -140,7 +139,7 @@ namespace XCharts
         }
 
         public static GameObject AddObject(string name, Transform parent, Vector2 anchorMin,
-            Vector2 anchorMax, Vector2 pivot, Vector2 sizeDelta)
+            Vector2 anchorMax, Vector2 pivot, Vector2 sizeDelta, int replaceIndex = -1)
         {
             GameObject obj;
             if (parent.Find(name))
@@ -150,6 +149,12 @@ namespace XCharts
                 obj.transform.localPosition = Vector3.zero;
                 obj.transform.localScale = Vector3.one;
             }
+            else if (replaceIndex >= 0 && replaceIndex < parent.childCount)
+            {
+                obj = parent.GetChild(replaceIndex).gameObject;
+                if (!obj.name.Equals(name)) obj.name = name;
+                SetActive(obj, true);
+            }
             else
             {
                 obj = new GameObject();
diff --git a/Assets/XChartsDemo/Runtime/Demo.cs b/Assets/XChartsDemo/Runtime/Demo.cs
index 433e7225..0aea6ba0 100644
--- a/Assets/XChartsDemo/Runtime/Demo.cs
+++ b/Assets/XChartsDemo/Runtime/Demo.cs
@@ -108,7 +108,7 @@ namespace XChartsDemo
             var btnPanel = transform.Find("chart_list");
             m_BtnClone = transform.Find("btn_clone").gameObject;
             m_BtnClone.SetActive(false);
-            ChartHelper.DestroyAllChildren(btnPanel);
+            ChartHelper.HideAllObject(btnPanel);
             foreach (var module in m_ChartModule)
             {
                 var btnName = "btn_" + module.name;
@@ -116,7 +116,8 @@ namespace XChartsDemo
                 if (btnPanel.Find(btnName))
                 {
                     btn = btnPanel.Find(btnName).gameObject;
-                    btn.SetActive(true);
+                    btn.name = btnName;
+                    ChartHelper.SetActive(btn, true);
                 }
                 else
                 {