diff --git a/config/env/torrents.js b/config/env/torrents.js
index c8b7ab83..8138e4b5 100644
--- a/config/env/torrents.js
+++ b/config/env/torrents.js
@@ -214,6 +214,7 @@ module.exports = {
         userInvitationExchange: {name: 'userInvitationExchange', enable: true},
         adminRemoveHnrWarning: {name: 'adminRemoveHnrWarning', enable: true},
         userRemoveHnrWarning: {name: 'userRemoveHnrWarning', enable: true},
+        adminSendOfficialInvitation: {name: 'adminSendOfficialInvitation', enable: true},
 
         userAnnounceData: {name: 'userAnnounceData', enable: true},
         userScoreChange: {name: 'userScoreChange', enable: true},
diff --git a/config/lib/debug.js b/config/lib/debug.js
index 84618a35..d40b56a1 100644
--- a/config/lib/debug.js
+++ b/config/lib/debug.js
@@ -13,7 +13,8 @@ var appConfig = config.meanTorrentConfig.app;
  */
 module.exports.debug = function (obj) {
   if (appConfig.showDebugLog) {
-    console.log('[' + moment().format('YYYY-MM-DD HH:mm:ss') + '] ' + obj);
+    console.log('[' + moment().format('YYYY-MM-DD HH:mm:ss') + ']');
+    console.log(obj);
   }
 };
 
@@ -23,7 +24,8 @@ module.exports.debug = function (obj) {
  */
 module.exports.debugGreen = function (obj) {
   if (appConfig.showDebugLog) {
-    console.log(chalk.green('[' + moment().format('YYYY-MM-DD HH:mm:ss') + '] ' + obj));
+    console.log(chalk.green('[' + moment().format('YYYY-MM-DD HH:mm:ss') + ']'));
+    console.log(obj);
   }
 };
 
@@ -33,7 +35,8 @@ module.exports.debugGreen = function (obj) {
  */
 module.exports.debugRed = function (obj) {
   if (appConfig.showDebugLog) {
-    console.log(chalk.red('[' + moment().format('YYYY-MM-DD HH:mm:ss') + '] ' + obj));
+    console.log(chalk.red('[' + moment().format('YYYY-MM-DD HH:mm:ss') + ']'));
+    console.log(obj);
   }
 };
 module.exports.debugError = function (obj) {
@@ -46,7 +49,8 @@ module.exports.debugError = function (obj) {
  */
 module.exports.debugBlue = function (obj) {
   if (appConfig.showDebugLog) {
-    console.log(chalk.blue('[' + moment().format('YYYY-MM-DD HH:mm:ss') + '] ' + obj));
+    console.log(chalk.blue('[' + moment().format('YYYY-MM-DD HH:mm:ss') + ']'));
+    console.log(obj);
   }
 };
 
@@ -56,7 +60,8 @@ module.exports.debugBlue = function (obj) {
  */
 module.exports.debugYellow = function (obj) {
   if (appConfig.showDebugLog) {
-    console.log(chalk.yellow('[' + moment().format('YYYY-MM-DD HH:mm:ss') + '] ' + obj));
+    console.log(chalk.yellow('[' + moment().format('YYYY-MM-DD HH:mm:ss') + ']'));
+    console.log(obj);
   }
 };
 
diff --git a/modules/core/client/app/trans-string-en.js b/modules/core/client/app/trans-string-en.js
index 74962d1f..f8a09c0a 100644
--- a/modules/core/client/app/trans-string-en.js
+++ b/modules/core/client/app/trans-string-en.js
@@ -539,6 +539,10 @@
     INVITATION_IS_EMPTY: 'There are no invitations available!',
     INVITATION_USED_IS_EMPTY: 'There are no used invitations!',
 
+    ADMIN_SEND_OFFICIAL_INVITATION: 'Send official invitation',
+    ADMIN_INVITATION_SUCCESSFULLY: 'Send official invitation successfully',
+    ADMIN_INVITATION_ERROR: 'Send official invitation failed',
+
     //user message box
     MESSAGES_BOX: 'Messages Box',
     MESSAGES_SEND: 'Send Messages',
diff --git a/modules/core/client/app/trans-string-zh.js b/modules/core/client/app/trans-string-zh.js
index e503974c..19119eb6 100644
--- a/modules/core/client/app/trans-string-zh.js
+++ b/modules/core/client/app/trans-string-zh.js
@@ -539,6 +539,10 @@
     INVITATION_IS_EMPTY: '没有可用的邀请函!',
     INVITATION_USED_IS_EMPTY: '没有发送过的邀请!',
 
+    ADMIN_SEND_OFFICIAL_INVITATION: '发送官方邀请函',
+    ADMIN_INVITATION_SUCCESSFULLY: '官方邀请函发送成功',
+    ADMIN_INVITATION_ERROR: '官方邀请函发送失败',
+
     //user message box
     MESSAGES_BOX: '站内消息',
     MESSAGES_SEND: '发送消息',
diff --git a/modules/core/client/less/btn-size.less b/modules/core/client/less/btn-size.less
index 41c6f1c3..7c390739 100644
--- a/modules/core/client/less/btn-size.less
+++ b/modules/core/client/less/btn-size.less
@@ -27,3 +27,37 @@
 .btn-width-200 {
     min-width: 120px !important;
 }
+
+.width-50 {
+    min-width: 50px !important;
+}
+.width-60 {
+    min-width: 60px !important;
+}
+.width-70 {
+    min-width: 70px !important;
+}
+.width-80 {
+    min-width: 80px !important;
+}
+.width-90 {
+    min-width: 90px !important;
+}
+.width-100 {
+    min-width: 100px !important;
+}
+.width-120 {
+    min-width: 120px !important;
+}
+.width-150 {
+    min-width: 150px !important;
+}
+.width-200 {
+    min-width: 200px !important;
+}
+.width-300 {
+    min-width: 300px !important;
+}
+.width-400 {
+    min-width: 400px !important;
+}
diff --git a/modules/invitations/client/controllers/admin-invitations.client.controller.js b/modules/invitations/client/controllers/admin-invitations.client.controller.js
new file mode 100644
index 00000000..4272e904
--- /dev/null
+++ b/modules/invitations/client/controllers/admin-invitations.client.controller.js
@@ -0,0 +1,39 @@
+(function () {
+  'use strict';
+
+  angular
+    .module('invitations.admin')
+    .controller('AdminInvitationController', AdminInvitationController);
+
+  AdminInvitationController.$inject = ['$scope', '$state', 'Authentication', 'InvitationsService', 'NotifycationService', 'DebugConsoleService'];
+
+  function AdminInvitationController($scope, $state, Authentication, InvitationsService, NotifycationService, mtDebug) {
+    var vm = this;
+    vm.user = Authentication.user;
+    vm.invitationFields = {
+      isOfficial: true
+    };
+    /**
+     * If user is not signed in then redirect back home
+     */
+    if (!Authentication.user) {
+      $state.go('authentication.signin');
+    }
+
+    /**
+     * sendOfficialInvitation
+     */
+    vm.sendOfficialInvitation = function () {
+      if (vm.invitationFields.email) {
+        var invitation = new InvitationsService(vm.invitationFields);
+
+        invitation.$official(function (res) {
+          mtDebug.info(res);
+          NotifycationService.showSuccessNotify('ADMIN_INVITATION_SUCCESSFULLY');
+        }, function (res) {
+          NotifycationService.showErrorNotify(res.data.message, 'EXCHANGE_INVITATION_ERROR');
+        });
+      }
+    };
+  }
+}());
diff --git a/modules/invitations/client/services/invitations.client.service.js b/modules/invitations/client/services/invitations.client.service.js
index a4be6949..8ca3de9d 100644
--- a/modules/invitations/client/services/invitations.client.service.js
+++ b/modules/invitations/client/services/invitations.client.service.js
@@ -24,6 +24,10 @@
       countInvitations: {
         method: 'GET',
         url: '/api/invitations/count'
+      },
+      official: {
+        method: 'POST',
+        url: '/api/invitations/official'
       }
     });
   }
diff --git a/modules/invitations/client/views/admin/official.client.view.html b/modules/invitations/client/views/admin/official.client.view.html
index e69de29b..8d50a9de 100644
--- a/modules/invitations/client/views/admin/official.client.view.html
+++ b/modules/invitations/client/views/admin/official.client.view.html
@@ -0,0 +1,27 @@
+<section class="container" ng-controller="AdminInvitationController as vm" ng-init="">
+    <div class="row margin-top-50">
+        <div class="col-md-8 col-md-offset-2">
+
+            <div class="margin-bottom-20">
+                <h4>{{'ADMIN_SEND_OFFICIAL_INVITATION' | translate}}</h4>
+                <li class="status-divider"></li>
+            </div>
+
+            <div class="margin-bottom-20 text-center">
+                <form class="form-inline">
+                    <div class="form-group">
+                        <input type="email" class="form-control width-300" id="title" name="title"
+                               ng-model="vm.invitationFields.email" placeholder="{{ 'INPUT_EMAIL' | translate }}" autofocus>
+                    </div>
+
+                    <button type="submit" class="btn btn-success btn-width-100"
+                            ng-disabled="!vm.invitationFields.email"
+                            ng-click="vm.sendOfficialInvitation();">
+                        {{ 'BUTTON_INVITE' | translate }}
+                    </button>
+                </form>
+            </div>
+        </div>
+    </div>
+
+</section>
diff --git a/modules/invitations/server/controllers/invitations.server.controller.js b/modules/invitations/server/controllers/invitations.server.controller.js
index 72d669e9..c846fed9 100644
--- a/modules/invitations/server/controllers/invitations.server.controller.js
+++ b/modules/invitations/server/controllers/invitations.server.controller.js
@@ -7,6 +7,7 @@ var path = require('path'),
   config = require(path.resolve('./config/config')),
   mongoose = require('mongoose'),
   errorHandler = require(path.resolve('./modules/core/server/controllers/errors.server.controller')),
+  validator = require('validator'),
   nodemailer = require('nodemailer'),
   User = mongoose.model('User'),
   Invitation = mongoose.model('Invitation'),
@@ -15,6 +16,15 @@ var path = require('path'),
 
 var smtpTransport = nodemailer.createTransport(config.mailer.options);
 var traceConfig = config.meanTorrentConfig.trace;
+var mtDebug = require(path.resolve('./config/lib/debug'));
+
+
+/**
+ * A Validation function for local strategy email
+ */
+var validateEmail = function (email) {
+  return validator.isEmail(email, {require_tld: false});
+};
 
 /**
  * create a Invitation
@@ -144,6 +154,7 @@ exports.update = function (req, res) {
       } else if (results[1] > 0) {
         return res.status(422).send({message: 'EMAIL_ALREADY_EXIST'});
       } else {
+        //send invitation mail
         var httpTransport = 'http://';
         if (config.secure && config.secure.ssl === true) {
           httpTransport = 'https://';
@@ -192,6 +203,108 @@ exports.update = function (req, res) {
   });
 };
 
+/**
+ * official
+ * send official invitation
+ * @param req
+ * @param res
+ */
+exports.official = function (req, res) {
+  if (!validateEmail(req.body.email)) {
+    return res.status(422).send({
+      message: 'ERROR: invalid email address!'
+    });
+  } else {
+
+    var countRegisteredEmail = function (callback) {
+      User.count({email: req.body.email}, function (err, count) {
+        if (err) {
+          callback(err, null);
+        } else {
+          callback(null, count);
+        }
+      });
+    };
+    var countInvitedEmail = function (callback) {
+      Invitation.count({to_email: req.body.email}, function (err, count) {
+        if (err) {
+          callback(err, null);
+        } else {
+          callback(null, count);
+        }
+      });
+    };
+
+    async.parallel([countRegisteredEmail, countInvitedEmail], function (err, results) {
+      if (err) {
+        return res.status(422).send(err);
+      } else {
+        if (results[0] > 0) {
+          return res.status(422).send({message: 'EMAIL_ALREADY_REGISTERED'});
+        } else if (results[1] > 0) {
+          return res.status(422).send({message: 'EMAIL_ALREADY_EXIST'});
+        } else {
+          //write invitation data
+          var invitation = new Invitation();
+          invitation.user = req.user;
+          invitation.token = req.user.randomAsciiString(32);
+          invitation.to_email = req.body.email;
+          invitation.status = 1;
+          invitation.invitedat = Date.now();
+          invitation.expiresat = Date.now() + config.meanTorrentConfig.invite.expires;
+          invitation.isOfficial = true;
+
+          invitation.save(function (err) {
+            if (err) {
+              return res.status(422).send({
+                message: errorHandler.getErrorMessage(err)
+              });
+            } else {
+              //create trace log
+              traceLogCreate(req, traceConfig.action.adminSendOfficialInvitation, {
+                to: req.body.email,
+                token: invitation.token
+              });
+            }
+          });
+
+          //send invitation mail
+          var httpTransport = 'http://';
+          if (config.secure && config.secure.ssl === true) {
+            httpTransport = 'https://';
+          }
+          var baseUrl = req.app.get('domain') || httpTransport + req.headers.host;
+          res.render(path.resolve('modules/invitations/server/templates/invite-sign-up-email'), {
+            to_email: req.body.email,
+            name: req.user.displayName,
+            appName: config.app.title,
+            url: baseUrl + '/api/auth/invite/' + invitation.token,
+            hours: config.meanTorrentConfig.invite.expires / (60 * 60 * 1000)
+          }, function (err, emailHTML) {
+            if (err) {
+              return res.status(422).send({message: 'INVITE_MAIL_RENDER_FAILED'});
+            } else {
+              var mailOptions = {
+                to: req.body.email,
+                from: config.mailer.from,
+                subject: config.app.title + ' invitation',
+                html: emailHTML
+              };
+              smtpTransport.sendMail(mailOptions, function (err) {
+                if (err) {
+                  return res.status(422).send({message: 'INVITE_MAIL_SEND_FAILED'});
+                } else {
+                  res.json(invitation);
+                }
+              });
+            }
+          });
+        }
+      }
+    });
+  }
+};
+
 /**
  * Delete an invitation
  */
diff --git a/modules/invitations/server/policies/invitations.server.policy.js b/modules/invitations/server/policies/invitations.server.policy.js
index 1ca4e5ec..14d849f7 100644
--- a/modules/invitations/server/policies/invitations.server.policy.js
+++ b/modules/invitations/server/policies/invitations.server.policy.js
@@ -14,6 +14,12 @@ acl = new acl(new acl.memoryBackend());
 exports.invokeRolesPolicies = function () {
   acl.allow(
     [
+      {
+        roles: ['admin', 'oper'],
+        allows: [
+          {resources: '/api/invitations/official', permissions: ['post']}
+        ]
+      },
       {
         roles: ['admin', 'oper', 'user'],
         allows: [
diff --git a/modules/invitations/server/routes/invitations.server.routes.js b/modules/invitations/server/routes/invitations.server.routes.js
index cbacfb9c..7ab909f7 100644
--- a/modules/invitations/server/routes/invitations.server.routes.js
+++ b/modules/invitations/server/routes/invitations.server.routes.js
@@ -17,6 +17,9 @@ module.exports = function (app) {
   app.route('/api/invitations/count').all(invitationsPolicy.isAllowed)
     .get(invitations.countInvitations);
 
+  app.route('/api/invitations/official').all(invitationsPolicy.isAllowed)
+    .post(invitations.official);
+
   app.route('/api/invitations/:invitationId').all(invitationsPolicy.isAllowed)
     .put(invitations.update)
     .delete(invitations.delete);
diff --git a/modules/messages/client/views/admin-send.client.view.html b/modules/messages/client/views/admin-send.client.view.html
index a8cc6666..1f6b58cf 100644
--- a/modules/messages/client/views/admin-send.client.view.html
+++ b/modules/messages/client/views/admin-send.client.view.html
@@ -11,7 +11,7 @@
                 <form name="vm.messageForm" ng-submit="vm.sendMessage(vm.messageForm.$valid)" novalidate autocomplete="off">
                     <dl class="dl-horizontal">
                         <div class="margin-bottom-10 form-group">
-                            <dt class="h-line">{{ 'MESSAGES_FIELD.TYPE' | translate}}：</dt>
+                            <dt class="h-line">{{ 'MESSAGES_FIELD.TYPE' | translate}}</dt>
                             <dd class="h-line">
                                 <select class="form-control" ng-model="vm.messageType">
                                     <option ng-repeat="t in vm.messageConfig.type.value" value="{{t.value}}">{{'MESSAGE_TYPE_'+t.name | translate}}
@@ -21,7 +21,7 @@
                         </div>
 
                         <div class="margin-bottom-10 form-group" show-errors>
-                            <dt class="h-line">{{ 'MESSAGES_FIELD.TITLE' | translate}}：</dt>
+                            <dt class="h-line">{{ 'MESSAGES_FIELD.TITLE' | translate}}</dt>
                             <dd class="h-line">
                                 <input type="text" class="form-control" id="title" name="title"
                                        ng-model="vm.messageFields.title" required>
@@ -33,7 +33,7 @@
                         </div>
 
                         <div class="margin-bottom-10 form-group" show-errors>
-                            <dt class="h-line">{{ 'MESSAGES_FIELD.CONTENT' | translate}}：</dt>
+                            <dt class="h-line">{{ 'MESSAGES_FIELD.CONTENT' | translate}}</dt>
                             <dd class="h-line">
                                 <textarea class="form-control message-textarea" id="content" name="content"
                                           ng-model="vm.messageFields.content" required></textarea>