diff --git a/weixin/mp_sdk.go b/weixin/mp_sdk.go
index ce83820..64ee484 100644
--- a/weixin/mp_sdk.go
+++ b/weixin/mp_sdk.go
@@ -39,6 +39,9 @@ func (o *MpSdk) GetUserInfoByJsCode(code string) (*UserInfo, error) {
 	userInfo := new(UserInfo)
 
 	g := gjson.ParseBytes(body)
+	if g.Get("errcode").Int() != 0 {
+		return nil, errors.New(string(body))
+	}
 	userInfo.Openid = g.Get("openid").String()
 	userInfo.Unionid = g.Get("unionid").String()
 	return userInfo, nil