diff --git a/server/payserver/service/wxpay_prepare.go b/server/payserver/service/wxpay_prepare.go
index 611722d..61775b5 100644
--- a/server/payserver/service/wxpay_prepare.go
+++ b/server/payserver/service/wxpay_prepare.go
@@ -12,7 +12,6 @@ import (
 	"github.com/wechatpay-apiv3/wechatpay-go/core"
 	"github.com/wechatpay-apiv3/wechatpay-go/core/consts"
 	"github.com/wechatpay-apiv3/wechatpay-go/core/option"
-	"github.com/wechatpay-apiv3/wechatpay-go/services/certificates"
 	"github.com/wechatpay-apiv3/wechatpay-go/services/fileuploader"
 	"github.com/wechatpay-apiv3/wechatpay-go/services/payments/jsapi"
 	"github.com/wechatpay-apiv3/wechatpay-go/utils"
@@ -47,12 +46,6 @@ func (wp *wxpay) initMch() {
 		f5.GetSysLog().Alert("new wechat pay client err:%s", err)
 	}
 
-	// 发送请求，以下载微信支付平台证书为例
-	// https://pay.weixin.qq.com/wiki/doc/apiv3/wechatpay/wechatpay5_1.shtml
-	svc := certificates.CertificatesApiService{Client: wp.client}
-	resp, result, err := svc.DownloadCertificates(wp.ctx)
-	f5.GetSysLog().Debug("status=%d resp=%s err=%s", result.Response.StatusCode, resp, err.Error())
-
 	go wp.checkGameMediaId()
 
 	wp.payhtmlstr, err = f5.ReadJsonFile("../config/payhtml.template")