diff --git a/apps/admin/src/pages/Classes/detail.tsx b/apps/admin/src/pages/Classes/detail.tsx
index 848d44f..07247a2 100644
--- a/apps/admin/src/pages/Classes/detail.tsx
+++ b/apps/admin/src/pages/Classes/detail.tsx
@@ -42,7 +42,6 @@ interface ClassStudent {
 interface ClassTeacher {
   id: number;
   userId: number;
-  name: string | null;
   username: string;
   roleType: string;
   subject: string | null;
@@ -190,9 +189,19 @@ const ClassDetailPage: React.FC = () => {
     }
   }, [id]);
 
+  const fetchUsers = useCallback(async () => {
+    try {
+      const res = (await api.get('/rbac/users')) as UserItem[];
+      setAllUsers(res || []);
+    } catch {
+      setAllUsers([]);
+    }
+  }, []);
+
   useEffect(() => {
     fetchDetail();
-  }, [fetchDetail]);
+    fetchUsers();
+  }, [fetchDetail, fetchUsers]);
 
   const fetchSchedules = useCallback(async () => {
     if (!id) return;
@@ -321,8 +330,7 @@ const ClassDetailPage: React.FC = () => {
 
   const openTeacherModal = async () => {
     try {
-      const res = (await api.get('/rbac/users')) as UserItem[];
-      setAllUsers(res || []);
+      await fetchUsers();
       setTeacherUserId(undefined);
       setTeacherRole('subject_teacher');
       setTeacherSubject('');
@@ -333,6 +341,9 @@ const ClassDetailPage: React.FC = () => {
     }
   };
 
+  const getTeacherName = (teacher: ClassTeacher) =>
+    allUsers.find((user) => user.id === teacher.userId)?.name?.trim() || '-';
+
   if (!detail) return null;
 
   const studentColumns: ColumnsType<ClassStudent> = [
@@ -361,7 +372,7 @@ const ClassDetailPage: React.FC = () => {
   ];
 
   const teacherColumns: ColumnsType<ClassTeacher> = [
-    { title: '姓名', dataIndex: 'name', render: (name: string | null) => name || '-' },
+    { title: '姓名', render: (_: unknown, teacher) => getTeacherName(teacher) },
     {
       title: '角色',
       dataIndex: 'roleType',
@@ -510,7 +521,12 @@ const ClassDetailPage: React.FC = () => {
                         {detail.studentCount}/{detail.maxStudents || '-'}
                       </Descriptions.Item>
                       <Descriptions.Item label="班主任">
-                        {teachers.find((t) => t.roleType === 'head_teacher')?.name || '-'}
+                        {(() => {
+                          const headTeacher = teachers.find(
+                            (teacher) => teacher.roleType === 'head_teacher',
+                          );
+                          return headTeacher ? getTeacherName(headTeacher) : '-';
+                        })()}
                       </Descriptions.Item>
                       <Descriptions.Item label="备注">{detail.notes || '-'}</Descriptions.Item>
                     </Descriptions>