diff --git a/doc/_common.py b/doc/_common.py
index bcc63c6..fbca022 100644
--- a/doc/_common.py
+++ b/doc/_common.py
@@ -31,7 +31,7 @@ class GunSkinInfo(object):
         self.fields = [
             ['gun_id', 0, '枪支id'],
             ['skin_id', 0, '皮肤id'],
-            ['try_expire_time', 0, '试用到期时间(utc时间)'],
+            ['try_expire_at', 0, '试用到期时间(utc时间)'],
         ]
 
 class RoleInfo(object):
@@ -143,7 +143,7 @@ class HeroSkin(object):
         self.fields = [
             ['skin_id', 0, '英雄皮肤id'],
             ['skin_state', 0, '英雄皮肤状态 0=已经购，1 = 试用状态'],
-            ['try_expire_time', 0, '试用到期时间(utc时间)'],
+            ['try_expire_at', 0, '试用到期时间(utc时间)'],
         ]
 
 class Item(object):
@@ -153,7 +153,7 @@ class Item(object):
             ['item_id', 0, '道具id'],
             ['item_num', 0, '道具数量'],
             ['item_state', 0, '英雄皮肤状态 0=已经购，1 = 试用状态'],
-            ['try_expire_time', 0, '试用到期时间(utc时间)'],
+            ['try_expire_at', 0, '试用到期时间(utc时间)'],
         ]
 
 class RobotInfo(object):
diff --git a/sql/gamedb.sql b/sql/gamedb.sql
index a8f1980..e6e9573 100644
--- a/sql/gamedb.sql
+++ b/sql/gamedb.sql
@@ -85,7 +85,7 @@ CREATE TABLE `t_hero_skin` (
   `skin_state` int(11) NOT NULL DEFAULT '0' COMMENT '英雄皮肤状态 0=已经购，1 = 试用状态',
   `get_from` int(11) NOT NULL DEFAULT '0' COMMENT '获得方式 0 = 系统赠送 1 = 金币购买',
   `consume_num` int(11) NOT NULL DEFAULT '0' COMMENT '消耗货币的具体数量',
-  `try_expire_time` int(11) NOT NULL DEFAULT '0' COMMENT '试用截止时间',
+  `try_expire_at` int(11) NOT NULL DEFAULT '0' COMMENT '试用截止时间',
   `createtime` int(11) NOT NULL DEFAULT '0' COMMENT '创建时间',
   `modifytime` int(11) NOT NULL DEFAULT '0' COMMENT '修改时间',
   PRIMARY KEY (`idx`),
@@ -106,7 +106,7 @@ CREATE TABLE `t_bag` (
   `item_id` int(11) NOT NULL DEFAULT '0' COMMENT '道具id',
   `item_num` int(11) NOT NULL DEFAULT '0' COMMENT '数量',
   `item_state` int(11) NOT NULL DEFAULT '0' COMMENT '状态（0=已经购，1 = 试用状态）',
-  `try_expire_time` int(11) NOT NULL DEFAULT '0' COMMENT '试用截止时间',
+  `try_expire_at` int(11) NOT NULL DEFAULT '0' COMMENT '试用截止时间',
   `createtime` int(11) NOT NULL DEFAULT '0' COMMENT '创建时间',
   `modifytime` int(11) NOT NULL DEFAULT '0' COMMENT '修改时间',
   PRIMARY KEY (`idx`),
@@ -126,7 +126,7 @@ CREATE TABLE `t_gun_skin` (
   `idx` bigint NOT NULL AUTO_INCREMENT COMMENT '自增id',
   `accountid` varchar(60) CHARACTER SET utf8 NOT NULL COMMENT 'accountid',
   `skin_id` int(11) NOT NULL DEFAULT '0' COMMENT '皮肤ID',
-  `try_expire_time` int(11) NOT NULL DEFAULT '0' COMMENT '试用截止时间',
+  `try_expire_at` int(11) NOT NULL DEFAULT '0' COMMENT '试用截止时间',
   `createtime` int(11) NOT NULL DEFAULT '0' COMMENT '创建时间',
   `modifytime` int(11) NOT NULL DEFAULT '0' COMMENT '修改时间',
   PRIMARY KEY (`idx`),
diff --git a/webapp/controller/BaseAuthedController.class.php b/webapp/controller/BaseAuthedController.class.php
index 73b67f4..bfa607a 100644
--- a/webapp/controller/BaseAuthedController.class.php
+++ b/webapp/controller/BaseAuthedController.class.php
@@ -229,7 +229,7 @@ class BaseAuthedController extends BaseController {
                          'item_id' => $item['item_id'],
                          'item_num' => 1,
                          'item_state' => 0,
-                         'try_expire_time' => 0,
+                         'try_expire_at' => 0,
                          'createtime' => $this->_getNowTime(),
                          'modifytime' => $this->_getNowTime()
                      )
diff --git a/webapp/models/HeroSkin.php b/webapp/models/HeroSkin.php
index 331bafe..572b0ec 100644
--- a/webapp/models/HeroSkin.php
+++ b/webapp/models/HeroSkin.php
@@ -30,7 +30,7 @@ class HeroSkin extends BaseModel {
         return array(
             'skin_id' => $row['skin_id'],
             'skin_state' => $row['skin_state'],
-            'try_expire_time' => $row['try_expire_time'],
+            'try_expire_at' => $row['try_expire_at'],
         );
     }
 
@@ -53,7 +53,7 @@ class HeroSkin extends BaseModel {
                 'skin_state' => 0,
                 'get_from' => 0,
                 'consume_num' => 0,
-                'try_expire_time' => 0,
+                'try_expire_at' => 0,
                 'createtime' => myself()->_getNowTime(),
                 'modifytime' => myself()->_getNowTime()
             )