diff --git a/application/admin/model/Api.php b/application/admin/model/Api.php
index 84bc378..cb411df 100644
--- a/application/admin/model/Api.php
+++ b/application/admin/model/Api.php
@@ -8,8 +8,6 @@
 namespace app\admin\model;
 
 
-use think\Model;
-
-class Api extends Model {
+class Api extends Base {
 
 }
\ No newline at end of file
diff --git a/application/admin/model/App.php b/application/admin/model/App.php
index f37e3d7..32c28db 100644
--- a/application/admin/model/App.php
+++ b/application/admin/model/App.php
@@ -8,8 +8,6 @@
 namespace app\admin\model;
 
 
-use think\Model;
-
-class App extends Model {
+class App extends Base {
 
 }
\ No newline at end of file
diff --git a/application/admin/model/AppMember.php b/application/admin/model/AppMember.php
index 80b75a6..0a97978 100644
--- a/application/admin/model/AppMember.php
+++ b/application/admin/model/AppMember.php
@@ -7,8 +7,6 @@
 namespace app\admin\model;
 
 
-use think\Model;
-
-class AppMember extends Model {
+class AppMember extends Base {
 
 }
\ No newline at end of file
diff --git a/application/admin/model/AuthGroup.php b/application/admin/model/AuthGroup.php
index 8f8e30e..8904d78 100644
--- a/application/admin/model/AuthGroup.php
+++ b/application/admin/model/AuthGroup.php
@@ -8,8 +8,6 @@
 namespace app\admin\model;
 
 
-use think\Model;
-
-class AuthGroup extends Model {
+class AuthGroup extends Base {
 
 }
\ No newline at end of file
diff --git a/application/admin/model/AuthGroupAccess.php b/application/admin/model/AuthGroupAccess.php
index 7a526ed..4a32c6e 100644
--- a/application/admin/model/AuthGroupAccess.php
+++ b/application/admin/model/AuthGroupAccess.php
@@ -8,8 +8,6 @@
 namespace app\admin\model;
 
 
-use think\Model;
-
-class AuthGroupAccess extends Model {
+class AuthGroupAccess extends Base {
 
 }
\ No newline at end of file
diff --git a/application/admin/model/AuthRule.php b/application/admin/model/AuthRule.php
index ae63876..fb4e31b 100644
--- a/application/admin/model/AuthRule.php
+++ b/application/admin/model/AuthRule.php
@@ -8,8 +8,6 @@
 namespace app\admin\model;
 
 
-use think\Model;
-
-class AuthRule extends Model {
+class AuthRule extends Base {
 
 }
\ No newline at end of file
diff --git a/application/admin/model/Base.php b/application/admin/model/Base.php
new file mode 100644
index 0000000..032be0e
--- /dev/null
+++ b/application/admin/model/Base.php
@@ -0,0 +1,14 @@
+<?php
+/**
+ * @since   2016-11-29
+ * @author  zhaoxiang <zhaoxiang051405@gmail.com>
+ */
+
+namespace app\admin\model;
+
+
+use think\Model;
+
+class Base extends Model {
+
+}
\ No newline at end of file
diff --git a/application/admin/model/Keys.php b/application/admin/model/Keys.php
new file mode 100644
index 0000000..8d03b1d
--- /dev/null
+++ b/application/admin/model/Keys.php
@@ -0,0 +1,13 @@
+<?php
+/**
+ * Api访问授权所需要的key
+ * @since   2016-11-29
+ * @author  zhaoxiang <zhaoxiang051405@gmail.com>
+ */
+
+namespace app\admin\model;
+
+
+class Keys extends Base {
+
+}
\ No newline at end of file
diff --git a/application/admin/model/Menu.php b/application/admin/model/Menu.php
index 40a9f1e..cbb3471 100644
--- a/application/admin/model/Menu.php
+++ b/application/admin/model/Menu.php
@@ -8,9 +8,7 @@
 namespace app\admin\model;
 
 
-use think\Model;
-
-class Menu extends Model {
+class Menu extends Base {
     protected $type = [
         'fid'        =>  'integer',
         'type'       =>  'integer',
diff --git a/application/admin/model/User.php b/application/admin/model/User.php
index eec660c..e503b93 100644
--- a/application/admin/model/User.php
+++ b/application/admin/model/User.php
@@ -1,9 +1,8 @@
 <?php
 namespace app\admin\model;
 
-use think\Model;
 
-class User extends Model {
+class User extends Base {
 
     protected $autoWriteTimestamp = true;
     protected $insert = ['regIp'];