diff --git a/modules/member/member.admin.controller.php b/modules/member/member.admin.controller.php
index 5eceea730..d6d018d4f 100644
--- a/modules/member/member.admin.controller.php
+++ b/modules/member/member.admin.controller.php
@@ -487,6 +487,10 @@ class memberAdminController extends member
 				{
 					$fields[] = sprintf('<field name="%s" required="true" rule="userid" length="3:20" />', $formInfo->name);
 				}
+				else if($formInfo->name == 'nick_name')
+				{
+					$fields[] = sprintf('<field name="%s" required="true" rule="userid" length="2:20" />', $formInfo->name);
+				}
 				else if(strpos($formInfo->name, 'image') !== false)
 				{
 					$fields[] = sprintf('<field name="%s"><if test="$act != \'procMemberAdminInsert\' &amp;&amp; $__%s_exist != \'true\'" attr="required" value="true" /></field>', $formInfo->name, $formInfo->name);