diff --git a/src/pages/config/pages/mechanismManage/index.vue b/src/pages/config/pages/mechanismManage/index.vue
index 7b1054ea3..bd5756b9d 100644
--- a/src/pages/config/pages/mechanismManage/index.vue
+++ b/src/pages/config/pages/mechanismManage/index.vue
@@ -30,7 +30,6 @@
           node-key="id"
           :filter-node-method="filterNode"
           highlight-current
-          default-expand-all
           ref="tree"
           :expand-on-click-node="false"
           @node-click="handleNodeClick">