diff --git a/application/module/Users/Operation/RegisterOperate.php b/application/module/Users/Operation/RegisterOperate.php
index b9985674..0c02b560 100644
--- a/application/module/Users/Operation/RegisterOperate.php
+++ b/application/module/Users/Operation/RegisterOperate.php
@@ -45,7 +45,7 @@ class RegisterOperate implements \Users\Event\RegisterEvent
 		
 		if(!empty($data['username']))
 		{
-			if(!preg_match("/^[a-zA-Z\xa0-\xff_][0-9a-zA-Z\xa0-\xff_]{2,25}$/",$data['username']))
+			if(!preg_match("/[0-9a-zA-Z\xa0-\xff_]{2,25}/",$data['username']))
 			{
 				return array('error'=>"用户名只能包含字母汉字数字和下划线，并且长度在2到26个字符之间",'place'=>'username');
 			}