diff --git a/.env.example b/.env.example
index 83927d6a..83e1e4d2 100644
--- a/.env.example
+++ b/.env.example
@@ -76,4 +76,6 @@ CLOUD_STORAGE_AUTH_URL=
 CLOUD_STORAGE_USERNAME=
 CLOUD_STORAGE_APIKEY=
 CLOUD_STORAGE_PROJECT_NAME=
-CLOUD_STORAGE_REGION=
\ No newline at end of file
+CLOUD_STORAGE_REGION=
+# enable/disable cal sync background task
+ENABLE_CAL_SYNC=true
\ No newline at end of file
diff --git a/app/Console/Commands/AdminActionsCalendarSyncProcessingCommand.php b/app/Console/Commands/AdminActionsCalendarSyncProcessingCommand.php
index cb320609..99d49985 100644
--- a/app/Console/Commands/AdminActionsCalendarSyncProcessingCommand.php
+++ b/app/Console/Commands/AdminActionsCalendarSyncProcessingCommand.php
@@ -13,6 +13,8 @@
  **/
 use Illuminate\Console\Command;
 use App\Services\Model\IAdminActionsCalendarSyncProcessingService;
+use Illuminate\Support\Facades\Config;
+
 /**
  * Class AdminActionsCalendarSyncProcessingCommand
  * @package App\Console\Commands
@@ -57,6 +59,12 @@ final class AdminActionsCalendarSyncProcessingCommand extends Command
 
     public function handle()
     {
+        $enabled = boolval(Config::get("cal_sync.enable_cal_sync", true));
+        if(!$enabled){
+            $this->info("task is not enabled!");
+            return false;
+        }
+
         $batch_size = $this->argument('batch_size');
         if(empty($batch_size))
             $batch_size = PHP_INT_MAX;
diff --git a/app/Console/Commands/MemberActionsCalendarSyncProcessingCommand.php b/app/Console/Commands/MemberActionsCalendarSyncProcessingCommand.php
index 8bfe1d8d..2e0fa7ce 100644
--- a/app/Console/Commands/MemberActionsCalendarSyncProcessingCommand.php
+++ b/app/Console/Commands/MemberActionsCalendarSyncProcessingCommand.php
@@ -13,6 +13,7 @@
  **/
 use Illuminate\Console\Command;
 use App\Services\Model\IMemberActionsCalendarSyncProcessingService;
+use Illuminate\Support\Facades\Config;
 use models\summit\CalendarSync\CalendarSyncInfo;
 use Illuminate\Support\Facades\Log;
 /**
@@ -59,6 +60,12 @@ final class MemberActionsCalendarSyncProcessingCommand extends Command
 
     public function handle()
     {
+        $enabled = boolval(Config::get("cal_sync.enable_cal_sync", true));
+        if(!$enabled){
+            $this->info("task is not enabled!");
+            return false;
+        }
+
         $batch_size = $this->argument('batch_size');
         $provider   = $this->argument('provider');
         if(!CalendarSyncInfo::isValidProvider($provider)){
diff --git a/config/cal_sync.php b/config/cal_sync.php
new file mode 100644
index 00000000..260c547f
--- /dev/null
+++ b/config/cal_sync.php
@@ -0,0 +1,17 @@
+<?php
+/**
+ * Copyright 2019 OpenStack Foundation
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ **/
+
+return [
+    'enable_cal_sync'=> env('ENABLE_CAL_SYNC', true),
+];
\ No newline at end of file