diff --git a/src/admin/mychannel_add.php b/src/admin/mychannel_add.php
index 062e42b7..320753ab 100644
--- a/src/admin/mychannel_add.php
+++ b/src/admin/mychannel_add.php
@@ -34,7 +34,7 @@ if ($action == 'add') {
     if ($issystem == -1 && $id > 0) $id = $id * -1;
 
     //检查id是否重复
-    $row = $dsql->GetOne("SELECT * FROM #@__channeltype WHERE id='$id' OR nid LIKE '$nid' OR addtable LIKE '$addtable'");
+    $row = $dsql->GetOne("SELECT * FROM `#@__channeltype` WHERE id='$id' OR nid LIKE '$nid' OR addtable LIKE '$addtable'");
     if (is_array($row)) {
         ShowMsg("可能‘频道id’、‘频道名称标识’、‘附加表名称’在数据库已存在，不能重复使用", "-1");
         exit();
@@ -63,7 +63,7 @@ if ($action == 'add') {
                     `arcrank` SMALLINT NOT NULL DEFAULT '0',
                     `mid` MEDIUMINT( 8 ) UNSIGNED NOT NULL DEFAULT '0',
                     `click` INT( 10 ) UNSIGNED NOT NULL DEFAULT '0',
-                    `title` varchar(60) NOT NULL default '',
+                    `title` varchar(255) NOT NULL default '',
                     `senddate` int(11) NOT NULL default '0',
                     `flag` set('c','h','p','f','s','j','a','b') default NULL,
                     `litpic` varchar(60) NOT NULL default '',
diff --git a/src/admin/mychannel_edit.php b/src/admin/mychannel_edit.php
index ff6c45c2..19a137fc 100644
--- a/src/admin/mychannel_edit.php
+++ b/src/admin/mychannel_edit.php
@@ -187,7 +187,7 @@ else if ($dopost == "exportinok") {
                 `arcrank` SMALLINT NOT NULL DEFAULT '0',
                 `mid` MEDIUMINT( 8 ) UNSIGNED NOT NULL DEFAULT '0',
                 `click` INT( 10 ) UNSIGNED NOT NULL DEFAULT '0',
-                `title` varchar(60) NOT NULL default '',
+                `title` varchar(255) NOT NULL default '',
                 `senddate` int(11) NOT NULL default '0',
                 `flag` set('c','h','p','f','s','j','a','b') default NULL,";
     }
diff --git a/src/install/sql-dftables.txt b/src/install/sql-dftables.txt
index bad34c05..8131af3e 100755
--- a/src/install/sql-dftables.txt
+++ b/src/install/sql-dftables.txt
@@ -179,7 +179,7 @@ CREATE TABLE `#@__archives` (
   `arcrank` smallint(6) NOT NULL default '0',
   `click` mediumint(8) unsigned NOT NULL default '0',
   `money` smallint(6) NOT NULL default '0',
-  `title` char(60) NOT NULL default '',
+  `title` varchar(255) NOT NULL default '',
   `shorttitle` char(36) NOT NULL default '',
   `color` char(7) NOT NULL default '',
   `writer` char(20) NOT NULL default '',
@@ -253,7 +253,7 @@ CREATE TABLE `#@__arctype` (
   `reid` smallint(5) unsigned NOT NULL default '0',
   `topid` smallint(5) unsigned NOT NULL default '0',
   `sortrank` smallint(5) unsigned NOT NULL default '50',
-  `typename` char(30) NOT NULL default '',
+  `typename` varchar(255) NOT NULL default '',
   `namegk` char(200) NOT NULL default '',
   `enname` char(200) NOT NULL default '',
   `ennamegk` char(200) NOT NULL default '',
diff --git a/src/install/v57sp2_to_v6.txt b/src/install/v57sp2_to_v6.txt
index c412ffbb..12f081a9 100644
--- a/src/install/v57sp2_to_v6.txt
+++ b/src/install/v57sp2_to_v6.txt
@@ -1,3 +1,7 @@
+-- 6.1.9
+ALTER TABLE `#@__archives` MODIFY COLUMN `title` varchar(255) NOT NULL DEFAULT '' AFTER `money`;
+ALTER TABLE `#@__arctype` MODIFY COLUMN `typename` varchar(255) NOT NULL DEFAULT '' AFTER `sortrank`;
+
 -- 6.1.8
 INSERT INTO `#@__sysconfig` VALUES ('710', 'cfg_tags_dir', 'TAGS生成目录', 7, 'string', '{cmspath}/a/tags');
 ALTER TABLE `#@__tagindex` DROP COLUMN `tag_pinyin`;