diff --git a/src/pages/student/list/index.vue b/src/pages/student/list/index.vue
index f20f15f..39d5896 100644
--- a/src/pages/student/list/index.vue
+++ b/src/pages/student/list/index.vue
@@ -192,9 +192,9 @@
                                                 show-checkbox
                                                 node-key="id"
                                                 highlight-current
+                                                default-expand-all
                                                 lazy
                                                 :load="loadClassTree"
-                                                :default-expand-all="!isAdd"
                                                 :default-checked-keys="defaultCheckedKeys"
                                                 :filter-node-method="filterNode"
                                                 :props="{children: 'children', label: 'organizationName', isLeaf: 'leaf'}"