diff --git a/app.php b/app.php
index ccffd09..0339677 100644
--- a/app.php
+++ b/app.php
@@ -10,6 +10,7 @@ define("MANGBOARD_POINT_UNIT", 1000);
 define("MANGBOARD_LEVEL_USER_MIN", 1);
 define("MANGBOARD_LEVEL_USER_MAX", 5);
 define("MANGBOARD_LEVEL_ADMIN", 10);
+define("MANGBOARD_LEVEL_OPERATOR", 7);
 require_once __DIR__ . DIRECTORY_SEPARATOR . "lib/autoload.php";
 try {
     if (1 > $argc) {
diff --git a/lib/Model/Mangboard/UserModel.php b/lib/Model/Mangboard/UserModel.php
index 759b917..b4075c1 100644
--- a/lib/Model/Mangboard/UserModel.php
+++ b/lib/Model/Mangboard/UserModel.php
@@ -42,6 +42,12 @@ class UserModel extends BaseModel
         if ($entity->getUserID() == MANGBOARD_ADMIN_ID) {
             return $entity;
         }
+
+        //운영자면 변경불가(7이상이면 변경불가)
+        if (MANGBOARD_LEVEL_OPERATOR <= $entity->getLevel()) {
+            return $entity;
+        }
+
         //사용자 Level 1~5;
         $level  = $level < MANGBOARD_LEVEL_USER_MIN ? MANGBOARD_LEVEL_USER_MIN : $level;
         $level  = MANGBOARD_LEVEL_USER_MAX < $level ? MANGBOARD_LEVEL_USER_MAX : $level;