diff --git a/playground/src/views/org/class-student/home.vue b/playground/src/views/org/class-student/home.vue
index 950ef1c..3a3973a 100644
--- a/playground/src/views/org/class-student/home.vue
+++ b/playground/src/views/org/class-student/home.vue
@@ -125,7 +125,7 @@ const grid = {
       title: '学员账号',
     },
     {
-      field: 'simSerialNumber',
+      field: 'serialNumber',
       title: '设备编码',
     },
     {