diff --git a/apps/web-antd/src/views/ops/components/AreaTree.vue b/apps/web-antd/src/views/ops/components/AreaTree.vue
index 10f157b42..ae766be98 100644
--- a/apps/web-antd/src/views/ops/components/AreaTree.vue
+++ b/apps/web-antd/src/views/ops/components/AreaTree.vue
@@ -117,6 +117,10 @@ async function loadTree() {
     );
     areaList.value = data;
     areaTree.value = handleTree(data, 'id', 'parentId', 'children');
+    // 默认展开到楼层：展开 PARK 和 BUILDING 节点
+    expandedKeys.value = data
+      .filter((a) => a.areaType === 'PARK' || a.areaType === 'BUILDING')
+      .map((a) => a.id!);
   } catch (error) {
     console.error('获取区域树失败', error);
   } finally {
@@ -159,6 +163,9 @@ function getDescendantIds(id: number): number[] {
   return result;
 }
 
+/** 展开的节点 key 列表 */
+const expandedKeys = ref<number[]>([]);
+
 /** 暴露刷新方法和路径查询供父组件调用 */
 defineExpose({ refresh: loadTree, getAreaPath, getDescendantIds, getAreaName });
 
@@ -183,7 +190,7 @@ onMounted(loadTree);
         v-if="areaTree.length > 0"
         class="pt-2"
         :tree-data="areaTree"
-        :default-expand-all="true"
+        v-model:expanded-keys="expandedKeys"
         :checkable="checkable"
         :checked-keys="checkable ? internalCheckedKeys : undefined"
         :selected-keys="selectedKeys"