diff --git a/internal/pkg/wechat/srv/marketing/marketing.go b/internal/pkg/wechat/srv/marketing/marketing.go
index 362776a..ea67fd5 100644
--- a/internal/pkg/wechat/srv/marketing/marketing.go
+++ b/internal/pkg/wechat/srv/marketing/marketing.go
@@ -62,10 +62,14 @@ func (srv *Marketing) Query(appId, openId, couponId string) (response *SendResp,
 	return response, nil
 }
 
-// Notify .
 func (srv *Marketing) Notify(_ context.Context, headers *http.Header, respBody []byte) (body *utils.WxNotifyBody, response string, err error) {
 
-	wxNotifyBody, bizStr, err := srv.GetDecodeBody(headers, respBody)
+	wxNotifyBody, err := srv.GetNotifyBody(headers, respBody)
+	if err != nil {
+		return nil, "", err
+	}
+
+	bizStr, err := srv.DecodeBody(wxNotifyBody)
 	if err != nil {
 		return nil, "", err
 	}
diff --git a/internal/pkg/wechat/utils/wxpay_utility.go b/internal/pkg/wechat/utils/wxpay_utility.go
index 1089bbe..d8718af 100644
--- a/internal/pkg/wechat/utils/wxpay_utility.go
+++ b/internal/pkg/wechat/utils/wxpay_utility.go
@@ -575,10 +575,10 @@ func (srv *MchConfig) Verify(request *http.Request) (string, error) {
 	return EncryptOAEPWithPublicKey(string(respBody), srv.wechatPayPublicKey)
 }
 
-func (srv *MchConfig) GetDecodeBody(headers *http.Header, respBody []byte) (*WxNotifyBody, string, error) {
+func (srv *MchConfig) GetNotifyBody(headers *http.Header, respBody []byte) (*WxNotifyBody, error) {
 
 	if respBody == nil {
-		return nil, "", fmt.Errorf("request HttpBody is nil")
+		return nil, fmt.Errorf("request HttpBody is nil")
 	}
 
 	err := ValidateResponse(
@@ -588,25 +588,34 @@ func (srv *MchConfig) GetDecodeBody(headers *http.Header, respBody []byte) (*WxN
 		respBody,
 	)
 	if err != nil {
-		return nil, "", err
+		return nil, err
 	}
 
 	var wxNotifyBody WxNotifyBody
 	if err = json.Unmarshal(respBody, &wxNotifyBody); err != nil {
-		return nil, "", err
+		return nil, err
 	}
 
+	return &wxNotifyBody, nil
+}
+
+func (srv *MchConfig) DecodeBody(wxNotifyBody *WxNotifyBody) (string, error) {
+
 	aesUtil, err := NewAesUtil(srv.aesKey)
 	if err != nil {
-		return nil, "", err
+		return "", err
 	}
 
-	decryptedText, err := aesUtil.DecryptToString(wxNotifyBody.Resource.AssociatedData, wxNotifyBody.Resource.Nonce, wxNotifyBody.Resource.Ciphertext)
+	decryptedText, err := aesUtil.DecryptToString(
+		wxNotifyBody.Resource.AssociatedData,
+		wxNotifyBody.Resource.Nonce,
+		wxNotifyBody.Resource.Ciphertext,
+	)
 	if err != nil {
-		return nil, "", err
+		return "", err
 	}
 
-	return &wxNotifyBody, decryptedText, nil
+	return decryptedText, nil
 }
 
 // BuildSortedQueryString 函数接受一个 map，返回按照字段名排序后的 URL 键值对格式字符串