diff --git a/platformapi/fnpsapi/fnps_v3.go b/platformapi/fnpsapi/fnps_v3.go
index 395b5146..42029a7c 100644
--- a/platformapi/fnpsapi/fnps_v3.go
+++ b/platformapi/fnpsapi/fnps_v3.go
@@ -317,7 +317,7 @@ type CreateOrderReqParam struct {
 
 // 创建订单返回值
 type CreateOrderRes struct {
-	OrderId string `json:"order_id"` // 运单id
+	OrderId int64 `json:"order_id"` // 运单id
 }
 
 // 查询余额getAmount
diff --git a/platformapi/fnpsapi/order.go b/platformapi/fnpsapi/order.go
index b3749dc6..513ce126 100644
--- a/platformapi/fnpsapi/order.go
+++ b/platformapi/fnpsapi/order.go
@@ -83,7 +83,7 @@ func (a *API) CreateOrder(createOrderParam *CreateOrderReqParam) (result string,
 		if err := json.Unmarshal([]byte(utils.Interface2String(orderId)), res); err != nil {
 			return "", err
 		}
-		return res.OrderId, nil
+		return utils.Int64ToStr(res.OrderId), nil
 	}
 	return "", err
 }