diff --git a/src/api/login.ts b/src/api/login.ts
index b308b23..0a22184 100644
--- a/src/api/login.ts
+++ b/src/api/login.ts
@@ -9,18 +9,23 @@ export interface AccountLoginParams {
 }
 
 /** 账号密码登录 */
-export const psdLogin = (data: AccountLoginParams) =>
-    request<string>({
+export const psdLogin = (data: AccountLoginParams) => {
+    const payload: Record<string, any> = {
+        clientType: 'PC',
+        model: 'web',
+        ...data,
+    };
+    // 学生端登录不传 simSerialNumber（接口要求）
+    if (payload.clientType === 'MANAGE') {
+        payload.simSerialNumber = 'web';
+    }
+    return request<string>({
         url: '/login',
         method: 'POST',
         headers: { Authorization: '' },
-        data: {
-            clientType: 'PC',
-            simSerialNumber: 'web',
-            model: 'web',
-            ...data,
-        },
+        data: payload,
     });
+};
 
 export interface ParentSmsLoginParams {
     phone: string;