diff --git a/app/controller/Student.php b/app/controller/Student.php
index eefe206..ab550f6 100644
--- a/app/controller/Student.php
+++ b/app/controller/Student.php
@@ -70,7 +70,7 @@ class Student
         $result = [
             "id"            => $vo['id'],
             "hot"           => $vo['hot'],
-            "avatar"        => 'http://'.env('ALIYUNSMS.CDN_NAME').$vo['avatar'],
+            "avatar"        => $vo['avatar'],
             "nickname"      => $vo['nickname'],
             "is_disabled"   => $vo['disabled'],
             "type"          => $vo["type"],