1、打开文件 member/inc/archives_check.php 
//检测文档是否重复 
if($cfg_mb_cktitle=='Y') 
{ 
    $row = $dsql->GetOne("Select * From `dede_archives` where title like '$title' "); 
    if(is_array($row)) 
    { 
        ShowMsg("对不起，请不要发布重复文档！","-1","0",5000); 
        exit(); 
    } 
} 
织梦允许不同会员发布相同的文章，不允许同一会员发布重复的文章
2、修改代码
找到
$row = $dsql->GetOne("Select * From `dede_archives` where title like '$title' "); 
改为
$row = $dsql->GetOne("Select * From `dede_archives` where title like '$title' and mid = '".$cfg_ml->M_ID."'");