1、使用PHPMYADMIN 修改 MYSQL数据结构 

CODE: ALTER TABLE `dede_archives` CHANGE `title` `title` VARCHAR( 250 ) [Copy to clipboard] 

2、打开/dede/action_article_save.php 

找到39行 CODE: $title = cn_substr($title,60); [Copy to clipboard] 

修改为 CODE: $title = cn_substr($title,250) [Copy to clipboard] ; 

3、打开/dede/action_archives_edit_save.php 

找到32行 CODE: $title = cn_substr($title,60); [Copy to clipboard] 

修改为 CODE: $title = cn_substr($title,250) [Copy to clipboard] ; 

OK，这样你的文章标题支持125个中文字符了！