diff --git a/Westdc/User/Group.php b/Westdc/User/Group.php
new file mode 100644
index 0000000..3566d8c
--- /dev/null
+++ b/Westdc/User/Group.php
@@ -0,0 +1,47 @@
+<?php
+/**
+ * Created by PhpStorm.
+ * User: Li Jianxuan
+ * Date: 14-9-19
+ * Time: 下午3:21
+ */
+
+namespace Westdc\User;
+
+use Zend\ServiceManager\ServiceManager;
+use Zend\ServiceManager\ServiceManagerAwareInterface;
+
+class Group implements ServiceManagerAwareInterface{
+
+    protected $serviceManager;
+
+    private $db;
+
+    public function setServiceManager(ServiceManager $serviceManager)
+    {
+        $this->serviceManager = $serviceManager;
+
+        $this->init();
+
+        return $this;
+    }
+
+    private function init()
+    {
+        $dbService = $this->serviceManager->get('Db');
+        $this->db = $dbService->getPdo();
+    }
+
+
+    /**
+     * @return mixed
+     */
+    public function fetchAll () {
+
+        $sql = "SELECT * FROM groups";
+        $rs = $this->db->query($sql);
+
+        return $rs->fetchAll(\PDO::FETCH_ASSOC);
+    }
+
+}
\ No newline at end of file