diff --git a/wchat/qq/Notify.php b/wchat/qq/Notify.php
index 1b49700..2bfa1f8 100644
--- a/wchat/qq/Notify.php
+++ b/wchat/qq/Notify.php
@@ -3,6 +3,7 @@
 
 namespace wchat\qq;
 
+use Exception;
 use wchat\common\Help;
 
 /**
@@ -41,11 +42,12 @@ class Notify extends SmallProgram
 	/**
 	 * @param array $params
 	 * @return $this
+	 * @throws Exception
 	 */
 	public function setPayNotifyData(array $params)
 	{
 		if (!$this->validation($params)) {
-			unset($params['result_code'], $params['err_code_des']);
+			throw new Exception('签名错误！');
 		}
 		foreach ($params as $key => $val) {
 			if (!property_exists($this, $key)) {