diff --git a/module/doc/lang/zh-cn.php b/module/doc/lang/zh-cn.php
index ddf398a44d..bfc7ace429 100644
--- a/module/doc/lang/zh-cn.php
+++ b/module/doc/lang/zh-cn.php
@@ -214,6 +214,7 @@ $lang->doclib->create['execution'] = '创建' . $lang->executionCommon . '文档
 $lang->doclib->create['custom']    = '创建自定义文档库';
 
 $lang->doclib->main['product']   = $lang->productCommon . '主库';
+$lang->doclib->main['project']   = '项目主库';
 $lang->doclib->main['execution'] = $lang->executionCommon . '主库';
 
 $lang->doclib->tabList['product']   = $lang->productCommon;
diff --git a/module/project/model.php b/module/project/model.php
index 2baa32f1cf..db830f76d7 100644
--- a/module/project/model.php
+++ b/module/project/model.php
@@ -778,6 +778,16 @@ class projectModel extends model
             $this->loadModel('personnel')->updateWhitelist($whitelist, 'project', $projectID);
             if($project->acl != 'open') $this->loadModel('user')->updateUserView($projectID, 'project');
 
+            /* Create doc lib. */
+            $this->app->loadLang('doc');
+            $lib = new stdclass();
+            $lib->project = $projectID;
+            $lib->name    = $this->lang->doclib->main['project'];
+            $lib->type    = 'project';
+            $lib->main    = '1';
+            $lib->acl     = 'default';
+            $this->dao->insert(TABLE_DOCLIB)->data($lib)->exec();
+
             $this->updateProducts($projectID);
 
             if(isset($_POST['newProduct']) || (!$project->parent && empty($linkedProductsCount)))
diff --git a/module/upgrade/model.php b/module/upgrade/model.php
index afbac96eb6..da0d745d0a 100644
--- a/module/upgrade/model.php
+++ b/module/upgrade/model.php
@@ -4205,6 +4205,16 @@ class upgradeModel extends model
                 ->where('id')->eq($projectID)
                 ->exec();
 
+            /* Create doc lib. */
+            $this->app->loadLang('doc');
+            $lib = new stdclass();
+            $lib->project = $projectID;
+            $lib->name    = $this->lang->doclib->main['project'];
+            $lib->type    = 'project';
+            $lib->main    = '1';
+            $lib->acl     = 'default';
+            $this->dao->insert(TABLE_DOCLIB)->data($lib)->exec();
+
             $this->loadModel('action')->create('project', $projectID, 'openedbysystem');
             if($data->projectStatus == 'closed') $this->loadModel('action')->create('project', $projectID, 'closedbysystem');
         }