diff --git a/src/install/sql-dfdata.txt b/src/install/sql-dfdata.txt
index 2f559bb7..e25bdb12 100755
--- a/src/install/sql-dfdata.txt
+++ b/src/install/sql-dfdata.txt
@@ -3965,7 +3965,7 @@ INSERT INTO `#@__sysconfig` VALUES ('1','cfg_basehost','站点网址','1','strin
 ('31','cfg_arcsptitle','是否开启分页标题，开启影响文档生成速度','6','bool','N'),
 ('32','cfg_arcautosp','是否开启长文档自动分页','6','bool','N'),
 ('33','cfg_arcautosp_size','文档自动分页大小','6','number','5'),
-('34','cfg_auot_description','自动摘要长度（0-250，0表示不启用）','7','number','250'),
+('34','cfg_auot_description','自动摘要长度（0-255，0表示不启用）','7','number','255'),
 ('35','cfg_ftp_host','FTP主机','2','string',''),
 ('36','cfg_ftp_port','FTP端口','2','number',''),
 ('37','cfg_ftp_user','FTP用户名','2','string',''),
@@ -3993,7 +3993,7 @@ INSERT INTO `#@__sysconfig` VALUES ('1','cfg_basehost','站点网址','1','strin
 ('59','cfg_arc_dellink','删除非站内链接','7','bool','Y'),
 ('60','cfg_arc_autopic','提取第一张图片作为缩略图','7','bool','Y'),
 ('61','cfg_arc_autokeyword','自动提取关键词','7','bool','N'),
-('62','cfg_title_maxlen','文档标题最大长度，变量后需要手工修改数据表','7','number','250'),
+('62','cfg_title_maxlen','文档标题最大长度，变量后需要手工修改数据表','7','number','255'),
 ('63','cfg_album_row','图集多行多列样式默认行数','3','number','3'),
 ('64','cfg_album_col','图集多行多列样式默认列数','3','number','4'),
 ('65','cfg_album_pagesize','图集多页多图每页显示最大数','3','number','12'),
@@ -4069,7 +4069,7 @@ INSERT INTO `#@__sysconfig` VALUES ('1','cfg_basehost','站点网址','1','strin
 ('136', 'cfg_cross_sectypeid', '支持交叉栏目显示副栏目文档', '7', 'bool', 'Y'),
 ('137', 'cfg_digg_update', '顶踩缓存异步更新间隔（0为不缓存）', '6', 'number', '0'),
 ('138', 'cfg_feedback_guest', '是否允许匿名评论', '5', 'bool', 'N'),
-('139', 'cfg_feedback_msglen', '评论文档字数限定', 5, 'number', '250'),
+('139', 'cfg_feedback_msglen', '评论文档字数限定', 5, 'number', '255'),
 ('140', 'cfg_auth_code', '商业版授权码', 1, 'bstring', ''),
 ('141', 'cfg_bizcore_hostname', 'DedeBIZ Core地址', 1, 'string', '127.0.0.1'),
 ('142', 'cfg_bizcore_port', 'DedeBIZ Core端口', 1, 'number', '8181'),