diff --git a/unify/pay.go b/unify/pay.go
index 0817a1f..4a126f4 100644
--- a/unify/pay.go
+++ b/unify/pay.go
@@ -54,9 +54,15 @@ func (p *Pay) CreateOrder(order *CreateOrderReq) (map[string]interface{}, error)
 	return rsp.Data, nil
 }
 
-func (p *Pay) CreatePartnerOrder(params map[string]interface{}) (map[string]interface{}, error) {
+func (p *Pay) CreatePartnerOrder(order *CreatePartnerOrderReq) (map[string]interface{}, error) {
 
-	reqBody, _ := json.Marshal(params)
+	if order.PayType == "" {
+		errors.New("payType is nil")
+	}
+	if order.PayPrice <= 0 {
+		return nil, errors.New("payPrice is nil")
+	}
+	reqBody, _ := json.Marshal(order)
 
 	result, err := util.HttpPostJson(p.address+"/api/pay/partner/order", map[string]string{
 		"x-token": p.token,
diff --git a/unify/pay_type.go b/unify/pay_type.go
index a41fab4..1b8905e 100644
--- a/unify/pay_type.go
+++ b/unify/pay_type.go
@@ -33,6 +33,17 @@ type CreateOrderReq struct {
 	Goods      *OrderGoods `json:"goods,omitempty"`
 }
 
+type CreatePartnerOrderReq struct {
+	PayType    string      `json:"payType"`
+	PaySource  string      `json:"paySource"`
+	PayPrice   int64       `json:"payPrice"`
+	GoodsName  string      `json:"goodsName"`
+	OutTradeNo string      `json:"outTradeNo"`
+	NotifyUrl  string      `json:"notifyUrl"`
+	PartnerId  string      `json:"partnerId"`
+	Extra      interface{} `json:"extra"`
+}
+
 type CommonResponse struct {
 	Code    int                    `json:"code"`
 	Message string                 `json:"message"`