diff --git a/assets/lcc-ui-sorting-group/engine-extend.ts b/assets/lcc-ui-sorting-group/engine-extend.ts
index ca8545e..ff626cc 100644
--- a/assets/lcc-ui-sorting-group/engine-extend.ts
+++ b/assets/lcc-ui-sorting-group/engine-extend.ts
@@ -1,5 +1,6 @@
 import { clamp, gfx,Node,RenderData,UI,StencilManager,UIRenderer } from 'cc';
 import { JSB } from 'cc/env';
+import { DEFAULT_SORTING_PRIORITY } from './sorting-define';
 
 declare module 'cc' {
     interface UIRenderer {
@@ -177,8 +178,8 @@ UI.prototype.walk = function(node: Node, level = 0){
             }
         }else{
             this.rendererCache.push(render);
-            render.sortingPriority = render.sortingPriority ?? 0;
-            if(render.sortingPriority != 0){
+            render.sortingPriority = render.sortingPriority ?? DEFAULT_SORTING_PRIORITY;
+            if(render.sortingPriority != DEFAULT_SORTING_PRIORITY){
                 this.rendererOrder = true;
             }
             if (this._opacityDirty && render && !render.useVertexOpacity && render.renderData && render.renderData.vertexCount > 0) {
diff --git a/assets/lcc-ui-sorting-group/sorting-define.ts b/assets/lcc-ui-sorting-group/sorting-define.ts
index 12948ea..36cd199 100644
--- a/assets/lcc-ui-sorting-group/sorting-define.ts
+++ b/assets/lcc-ui-sorting-group/sorting-define.ts
@@ -21,3 +21,8 @@ export enum SortingLayer {
  * 在层级中最大排序值
  */
 export const ORDER_IN_LAYER_MAX = 100000;
+
+/**
+ * 默认排序优先级
+ */
+export const DEFAULT_SORTING_PRIORITY = SortingLayer.DEFAULT * ORDER_IN_LAYER_MAX;
diff --git a/assets/lcc-ui-sorting-group/sorting-group.ts b/assets/lcc-ui-sorting-group/sorting-group.ts
index 7aa3210..688f623 100644
--- a/assets/lcc-ui-sorting-group/sorting-group.ts
+++ b/assets/lcc-ui-sorting-group/sorting-group.ts
@@ -1,6 +1,6 @@
 
 import { _decorator, Component, Node, ccenum, CCInteger, CCFloat, Enum, director, UI, UIRenderer } from 'cc';
-import { ORDER_IN_LAYER_MAX, SortingLayer } from './sorting-define';
+import { DEFAULT_SORTING_PRIORITY, ORDER_IN_LAYER_MAX, SortingLayer } from './sorting-define';
 const { ccclass, property, type, disallowMultiple, requireComponent } = _decorator;
 
 @ccclass('lcc-ui/SortingGroup')
@@ -33,6 +33,6 @@ export class SortingGroup extends Component {
     }
 
     onDisable(){
-        this._uiRenderer.sortingPriority = SortingLayer.DEFAULT * ORDER_IN_LAYER_MAX;
+        this._uiRenderer.sortingPriority = DEFAULT_SORTING_PRIORITY;
     }
 }