diff --git a/DOC/API/admin.md b/DOC/API/admin.md
index 12c8732..11ed84b 100644
--- a/DOC/API/admin.md
+++ b/DOC/API/admin.md
@@ -11,10 +11,7 @@ Request:
         "order_id": "560097131641814"
     }
 
-Response:
-
-    {}
-
 Exception:
 
 * account_not_exist
+* invalid_amount
diff --git a/config.coffee b/config.coffee
index 82c9bed..dd1e25f 100644
--- a/config.coffee
+++ b/config.coffee
@@ -3,12 +3,6 @@ module.exports =
     url: 'http://rp3.rpvhost.net'
     port: 3000
 
-  debug:
-    mock_test: false
-
-  admin:
-    username: ['jysperm']
-
   account:
     invalid_username: [
       'root', 'daemon', 'bin', 'sys', 'sync', 'games', 'man', 'lp', 'mail', 'colord', 'nobody',
diff --git a/core/router/admin.coffee b/core/router/admin.coffee
index ae31fe3..c4d811d 100644
--- a/core/router/admin.coffee
+++ b/core/router/admin.coffee
@@ -5,7 +5,7 @@ mAccount = require '../model/account'
 module.exports = exports = express.Router()
 
 exports.get '/', requestAdminAuthenticate, renderAccount, (req, res) ->
-  mAccount.find({}).toArray (err, accounts) ->
+  mAccount.find().toArray (err, accounts) ->
     res.render 'admin/index',
       accounts: accounts
 
@@ -15,7 +15,9 @@ exports.post '/create_payment', requestAdminAuthenticate, (req, res) ->
       return res.error 'account_not_exist'
 
     amount = parseFloat req.body.amount
-    amount = 0 unless _.isNaN amount
+
+    if _.isNaN amount
+      return res.error 'invalid_amount'
 
     mAccount.incBalance account, 'deposit', amount,
       type: req.body.type
diff --git a/core/view/layout.jade b/core/view/layout.jade
index 5317b25..ebc2503 100644
--- a/core/view/layout.jade
+++ b/core/view/layout.jade
@@ -32,6 +32,9 @@ html
                   a= account.username
                 li
                   a(href='/panel/')= t('panel.')
+                if mAccount.inGroup(account, 'root')
+                  li
+                    a(href='/admin/') 管理员面板
                 li
                   a#logout(href='/account/logout/')= t('account.logout')
               else