diff --git a/packages/devui-vue/devui/tree/src/composables/use-core.ts b/packages/devui-vue/devui/tree/src/composables/use-core.ts
index 3597c5fcd8..3e27cb2989 100644
--- a/packages/devui-vue/devui/tree/src/composables/use-core.ts
+++ b/packages/devui-vue/devui/tree/src/composables/use-core.ts
@@ -7,9 +7,8 @@ const DEFAULT_CONFIG = {
   recursive: true, // 是否需要获取非直接子节点
 };
 
-const nodeMap = new Map<string, IInnerTreeNode[]>();
-
-export default function() {
+export default function(): (data: Ref<IInnerTreeNode[]>) => IUseCore {
+  const nodeMap = new Map<string, IInnerTreeNode[]>();
   return function useCore(data: Ref<IInnerTreeNode[]>): IUseCore {
     const getLevel = (node: IInnerTreeNode): number => {
       return data.value.find((item) => item.id === node.id)?.level;