diff --git a/db/zentao.sql b/db/zentao.sql
index 9b4c4a8724..427d2a475c 100644
--- a/db/zentao.sql
+++ b/db/zentao.sql
@@ -863,9 +863,9 @@ INSERT INTO `zt_grouppriv` (`group`, `module`, `method`) VALUES
 (1, 'doc', 'editLib'),
 (1, 'doc', 'index'),
 (1, 'doc', 'allLibs'),
+(1, 'doc', 'objectLibs'),
 (1, 'doc', 'showFiles'),
 (1, 'doc', 'view'),
-(1, 'doc', 'diff'),
 (1, 'editor', 'delete'),
 (1, 'editor', 'edit'),
 (1, 'editor', 'extend'),
@@ -1173,9 +1173,9 @@ INSERT INTO `zt_grouppriv` (`group`, `module`, `method`) VALUES
 (2, 'doc', 'edit'),
 (2, 'doc', 'index'),
 (2, 'doc', 'allLibs'),
+(2, 'doc', 'objectLibs'),
 (2, 'doc', 'showFiles'),
 (2, 'doc', 'view'),
-(2, 'doc', 'diff'),
 (2, 'file', 'download'),
 (2, 'file', 'edit'),
 (2, 'git', 'apiSync'),
@@ -1343,9 +1343,9 @@ INSERT INTO `zt_grouppriv` (`group`, `module`, `method`) VALUES
 (3, 'doc', 'edit'),
 (3, 'doc', 'index'),
 (3, 'doc', 'allLibs'),
+(3, 'doc', 'objectLibs'),
 (3, 'doc', 'showFiles'),
 (3, 'doc', 'view'),
-(3, 'doc', 'diff'),
 (3, 'file', 'download'),
 (3, 'file', 'edit'),
 (3, 'git', 'apiSync'),
@@ -1554,9 +1554,9 @@ INSERT INTO `zt_grouppriv` (`group`, `module`, `method`) VALUES
 (4, 'doc', 'editLib'),
 (4, 'doc', 'index'),
 (4, 'doc', 'allLibs'),
+(4, 'doc', 'objectLibs'),
 (4, 'doc', 'showFiles'),
 (4, 'doc', 'view'),
-(4, 'doc', 'diff'),
 (4, 'extension', 'browse'),
 (4, 'extension', 'obtain'),
 (4, 'extension', 'structure'),
@@ -1767,9 +1767,9 @@ INSERT INTO `zt_grouppriv` (`group`, `module`, `method`) VALUES
 (5, 'doc', 'editLib'),
 (5, 'doc', 'index'),
 (5, 'doc', 'allLibs'),
+(5, 'doc', 'objectLibs'),
 (5, 'doc', 'showFiles'),
 (5, 'doc', 'view'),
-(5, 'doc', 'diff'),
 (5, 'extension', 'browse'),
 (5, 'extension', 'obtain'),
 (5, 'extension', 'structure'),
@@ -2016,9 +2016,9 @@ INSERT INTO `zt_grouppriv` (`group`, `module`, `method`) VALUES
 (6, 'doc', 'editLib'),
 (6, 'doc', 'index'),
 (6, 'doc', 'allLibs'),
+(6, 'doc', 'objectLibs'),
 (6, 'doc', 'showFiles'),
 (6, 'doc', 'view'),
-(6, 'doc', 'diff'),
 (6, 'extension', 'browse'),
 (6, 'extension', 'obtain'),
 (6, 'extension', 'structure'),
@@ -2227,9 +2227,9 @@ INSERT INTO `zt_grouppriv` (`group`, `module`, `method`) VALUES
 (7, 'doc', 'editLib'),
 (7, 'doc', 'index'),
 (7, 'doc', 'allLibs'),
+(7, 'doc', 'objectLibs'),
 (7, 'doc', 'showFiles'),
 (7, 'doc', 'view'),
-(7, 'doc', 'diff'),
 (7, 'extension', 'browse'),
 (7, 'extension', 'obtain'),
 (7, 'extension', 'structure'),
@@ -2454,9 +2454,9 @@ INSERT INTO `zt_grouppriv` (`group`, `module`, `method`) VALUES
 (8, 'doc', 'editLib'),
 (8, 'doc', 'index'),
 (8, 'doc', 'allLibs'),
+(8, 'doc', 'objectLibs'),
 (8, 'doc', 'showFiles'),
 (8, 'doc', 'view'),
-(8, 'doc', 'diff'),
 (8, 'extension', 'browse'),
 (8, 'extension', 'obtain'),
 (8, 'extension', 'structure'),
@@ -2655,9 +2655,9 @@ INSERT INTO `zt_grouppriv` (`group`, `module`, `method`) VALUES
 (9, 'doc', 'editLib'),
 (9, 'doc', 'index'),
 (9, 'doc', 'allLibs'),
+(9, 'doc', 'objectLibs'),
 (9, 'doc', 'showFiles'),
 (9, 'doc', 'view'),
-(9, 'doc', 'diff'),
 (9, 'extension', 'browse'),
 (9, 'extension', 'obtain'),
 (9, 'extension', 'structure'),
@@ -2804,9 +2804,9 @@ INSERT INTO `zt_grouppriv` (`group`, `module`, `method`) VALUES
 (10, 'doc', 'browse'),
 (10, 'doc', 'index'),
 (10, 'doc', 'allLibs'),
+(10, 'doc', 'objectLibs'),
 (10, 'doc', 'showFiles'),
 (10, 'doc', 'view'),
-(10, 'doc', 'diff'),
 (10, 'file', 'download'),
 (10, 'index', 'index'),
 (10, 'misc', 'ping'),
@@ -2894,9 +2894,9 @@ INSERT INTO `zt_grouppriv` (`group`, `module`, `method`) VALUES
 (11, 'doc', 'browse'),
 (11, 'doc', 'index'),
 (11, 'doc', 'allLibs'),
+(11, 'doc', 'objectLibs'),
 (11, 'doc', 'showFiles'),
 (11, 'doc', 'view'),
-(11, 'doc', 'diff'),
 (11, 'file', 'download'),
 (11, 'git', 'cat'),
 (11, 'git', 'diff'),
diff --git a/module/doc/lang/en.php b/module/doc/lang/en.php
index d6b60edcb9..8b6ca0ab42 100644
--- a/module/doc/lang/en.php
+++ b/module/doc/lang/en.php
@@ -56,6 +56,7 @@ $lang->doc->libType        = 'Library type';
 $lang->doc->custom         = 'Custom library';
 $lang->doc->createLib      = 'Create library';
 $lang->doc->allLibs        = 'Browse library';
+$lang->doc->objectLibs     = "Browse {$lang->productCommon}/{$lang->projectCommon} library";
 $lang->doc->showFiles      = 'File library';
 $lang->doc->editLib        = 'Edit library';
 $lang->doc->deleteLib      = 'Delete library';
diff --git a/module/doc/lang/zh-cn.php b/module/doc/lang/zh-cn.php
index 8b50130fea..2310453545 100644
--- a/module/doc/lang/zh-cn.php
+++ b/module/doc/lang/zh-cn.php
@@ -60,6 +60,7 @@ $lang->doc->libType        = '文档库类型';
 $lang->doc->custom         = '自定义文档库';
 $lang->doc->createLib      = '创建文档库';
 $lang->doc->allLibs        = '文档库列表';
+$lang->doc->objectLibs     = "{$lang->productCommon}/{$lang->projectCommon}库列表";
 $lang->doc->showFiles      = '附件库';
 $lang->doc->editLib        = '编辑文档库';
 $lang->doc->deleteLib      = '删除文档库';
diff --git a/module/group/lang/resource.php b/module/group/lang/resource.php
index 68532eadd5..8f2c52763e 100644
--- a/module/group/lang/resource.php
+++ b/module/group/lang/resource.php
@@ -563,18 +563,19 @@ $lang->testtask->methodOrder[70] = 'results';
 
 /* Doc. */
 $lang->resource->doc = new stdclass();
-$lang->resource->doc->index     = 'index';
-$lang->resource->doc->browse    = 'browse';
-$lang->resource->doc->createLib = 'createLib';
-$lang->resource->doc->editLib   = 'editLib';
-$lang->resource->doc->deleteLib = 'deleteLib';
-$lang->resource->doc->create    = 'create';
-$lang->resource->doc->view      = 'view';
-$lang->resource->doc->edit      = 'edit';
-$lang->resource->doc->delete    = 'delete';
-$lang->resource->doc->allLibs   = 'allLibs';
-$lang->resource->doc->showFiles = 'showFiles';
-$lang->resource->doc->diff      = 'diff';
+$lang->resource->doc->index      = 'index';
+$lang->resource->doc->browse     = 'browse';
+$lang->resource->doc->createLib  = 'createLib';
+$lang->resource->doc->editLib    = 'editLib';
+$lang->resource->doc->deleteLib  = 'deleteLib';
+$lang->resource->doc->create     = 'create';
+$lang->resource->doc->view       = 'view';
+$lang->resource->doc->edit       = 'edit';
+$lang->resource->doc->delete     = 'delete';
+$lang->resource->doc->allLibs    = 'allLibs';
+$lang->resource->doc->objectLibs = 'objectLibs';
+$lang->resource->doc->showFiles  = 'showFiles';
+//$lang->resource->doc->diff       = 'diff';
 
 $lang->doc->methodOrder[0]  = 'index';
 $lang->doc->methodOrder[5]  = 'browse';
@@ -587,7 +588,8 @@ $lang->doc->methodOrder[35] = 'edit';
 $lang->doc->methodOrder[40] = 'delete';
 $lang->doc->methodOrder[45] = 'allLibs';
 $lang->doc->methodOrder[50] = 'showFiles';
-$lang->doc->methodOrder[55] = 'diff';
+$lang->doc->methodOrder[55] = 'objectLibs';
+//$lang->doc->methodOrder[55] = 'diff';
 
 /* mail. */
 $lang->resource->mail = new stdclass();
diff --git a/module/upgrade/model.php b/module/upgrade/model.php
index 0602e39b6d..5249defae9 100644
--- a/module/upgrade/model.php
+++ b/module/upgrade/model.php
@@ -1366,7 +1366,7 @@ class upgradeModel extends model
             $data->method = 'showFiles';
             $this->dao->replace(TABLE_GROUPPRIV)->data($data)->exec();
 
-            $data->method = 'diff';
+            $data->method = 'objectLibs';
             $this->dao->replace(TABLE_GROUPPRIV)->data($data)->exec();
         }
         return true;