diff --git a/src/main/resources/mapper/SysUserMapper.xml b/src/main/resources/mapper/SysUserMapper.xml
index 826e661e..63762335 100644
--- a/src/main/resources/mapper/SysUserMapper.xml
+++ b/src/main/resources/mapper/SysUserMapper.xml
@@ -23,7 +23,7 @@
             LEFT JOIN sys_user_role sur ON u.id = sur.user_id
             LEFT JOIN sys_role r ON sur.role_id = r.id
         <where>
-            u.deleted = 0
+            u.deleted = 0 AND u.username != 'root'
             <if test='queryParams.keywords!=null and queryParams.keywords.trim() neq ""'>
                 AND (
                     u.username LIKE CONCAT('%',#{queryParams.keywords},'%')
@@ -121,9 +121,9 @@
             u.create_time
         FROM
             sys_user u
-            LEFT JOIN sys_dept d ON u.dept_id = d.id
+                LEFT JOIN sys_dept d ON u.dept_id = d.id
         <where>
-            u.deleted = 0
+            u.deleted = 0 AND u.username != 'root'
             <if test='keywords!=null and keywords.trim() neq ""'>
                 AND (u.username LIKE CONCAT('%',#{keywords},'%')
                 OR u.nickname LIKE CONCAT('%',#{keywords},'%')