diff --git a/account/tests.py b/account/tests.py
index aca8971..aa21bc7 100644
--- a/account/tests.py
+++ b/account/tests.py
@@ -145,10 +145,10 @@ class UserChangePasswordAPITest(APITestCase):
         self.assertEqual(response.data, {"code": 0, "data": u"用户密码修改成功！"})
 
 
-class UserAPITest(APITestCase):
+class UserAdminAPITest(APITestCase):
     def setUp(self):
         self.client = APIClient()
-        self.url = reverse("user_list_api")
+        self.url = reverse("user_admin_api")
         user = User.objects.create(username="testx", real_name="xx", admin_type=SUPER_ADMIN)
         user.set_password("testxx")
         user.save()
diff --git a/account/views.py b/account/views.py
index f053903..f2c6ca3 100644
--- a/account/views.py
+++ b/account/views.py
@@ -135,6 +135,12 @@ class UserAdminAPIView(APIView):
                 user = User.objects.get(id=data["id"])
             except User.DoesNotExist:
                 return error_response(u"该用户不存在！")
+            try:
+                user = User.objects.get(username=data["username"])
+                if user.id != data["id"]:
+                    return error_response(u"昵称已经存在")
+            except User.DoesNotExist:
+                pass
             user.username = data["username"]
             user.real_name = data["real_name"]
             user.email = data["email"]