diff --git a/playground/src/api/service/org/classroom-monitor.ts b/playground/src/api/service/org/classroom-monitor.ts
index 68c19eb..099b0d4 100644
--- a/playground/src/api/service/org/classroom-monitor.ts
+++ b/playground/src/api/service/org/classroom-monitor.ts
@@ -83,11 +83,11 @@ export type ClassMonitorSessionsPage = PageResponse<ClassMonitorSessionRow> & {
 }
 
 class ClassroomMonitorService {
-  async getClassList() {
-    return await get<PageResponse<ClassroomItem>>('/org/class/list', {
-      current: 1,
-      size: 25,
-    })
+  /** 教师名下班级列表，与 `/api/main/org/class/listByTeacher` 一致 */
+  async getClassList(): Promise<ClassroomItem[]> {
+    const res = await get<any>('/org/class/listByTeacher')
+    const list = Array.isArray(res) ? res : (res?.rows ?? res?.data ?? [])
+    return list as ClassroomItem[]
   }
 
   async getCurrent(classId: number | string) {
diff --git a/playground/src/views/org/classroom-monitor/home.vue b/playground/src/views/org/classroom-monitor/home.vue
index b1a5f0c..f2be80d 100644
--- a/playground/src/views/org/classroom-monitor/home.vue
+++ b/playground/src/views/org/classroom-monitor/home.vue
@@ -56,8 +56,7 @@ onBeforeUnmount(() => {
 async function loadClassList() {
   classLoading.value = true
   try {
-    const data = await classroomMonitorService.getClassList()
-    classList.value = data?.rows ?? []
+    classList.value = await classroomMonitorService.getClassList()
   } finally {
     classLoading.value = false
   }