diff --git a/proto/plugin.pb.go b/proto/plugin.pb.go
index 2667f47..fcc00e6 100644
--- a/proto/plugin.pb.go
+++ b/proto/plugin.pb.go
@@ -561,7 +561,8 @@ type OrderRequest_Product struct {
 
 	ProductNo string  `protobuf:"bytes,1,opt,name=product_no,json=productNo,proto3" json:"product_no,omitempty"`
 	Price     float32 `protobuf:"fixed32,2,opt,name=price,proto3" json:"price,omitempty"`
-	Extra     []byte  `protobuf:"bytes,3,opt,name=extra,proto3" json:"extra,omitempty"` // extra 其他的拓展参数 json 格式
+	Type      uint32  `protobuf:"varint,3,opt,name=type,proto3" json:"type,omitempty"`
+	Extra     []byte  `protobuf:"bytes,4,opt,name=extra,proto3" json:"extra,omitempty"` // extra 其他的拓展参数 json 格式
 }
 
 func (x *OrderRequest_Product) Reset() {
@@ -610,6 +611,13 @@ func (x *OrderRequest_Product) GetPrice() float32 {
 	return 0
 }
 
+func (x *OrderRequest_Product) GetType() uint32 {
+	if x != nil {
+		return x.Type
+	}
+	return 0
+}
+
 func (x *OrderRequest_Product) GetExtra() []byte {
 	if x != nil {
 		return x.Extra
@@ -705,7 +713,7 @@ var file_proto_plugin_proto_rawDesc = []byte{
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@@ -722,55 +730,57 @@ var file_proto_plugin_proto_rawDesc = []byte{
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 }
 
 var (
diff --git a/proto/plugin.pb.validate.go b/proto/plugin.pb.validate.go
index 009b21f..ca56725 100644
--- a/proto/plugin.pb.validate.go
+++ b/proto/plugin.pb.validate.go
@@ -1165,6 +1165,8 @@ func (m *OrderRequest_Product) validate(all bool) error {
 
 	// no validation rules for Price
 
+	// no validation rules for Type
+
 	// no validation rules for Extra
 
 	if len(errors) > 0 {
diff --git a/proto/plugin.proto b/proto/plugin.proto
index 064bc26..def5bd5 100644
--- a/proto/plugin.proto
+++ b/proto/plugin.proto
@@ -34,7 +34,8 @@ message OrderRequest{
   message Product {
     string product_no = 1;
     float price = 2;
-    bytes extra = 3; // extra 其他的拓展参数 json 格式
+    uint32 type = 3;
+    bytes extra = 4; // extra 其他的拓展参数 json 格式
   }
   Order order = 2;
   Product product = 3;