diff --git a/pkg/rpc/pb/service_user_bill.pb.go b/pkg/rpc/pb/service_user_bill.pb.go
index 92b05d1..6191082 100644
--- a/pkg/rpc/pb/service_user_bill.pb.go
+++ b/pkg/rpc/pb/service_user_bill.pb.go
@@ -282,7 +282,8 @@ type FindUserBillRequest struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	UserBillId int64 `protobuf:"varint,1,opt,name=userBillId,proto3" json:"userBillId,omitempty"`
+	UserBillId int64  `protobuf:"varint,1,opt,name=userBillId,proto3" json:"userBillId,omitempty"` // ID，和单号二选一
+	Code       string `protobuf:"bytes,2,opt,name=code,proto3" json:"code,omitempty"`              // 单号
 }
 
 func (x *FindUserBillRequest) Reset() {
@@ -324,6 +325,13 @@ func (x *FindUserBillRequest) GetUserBillId() int64 {
 	return 0
 }
 
+func (x *FindUserBillRequest) GetCode() string {
+	if x != nil {
+		return x.Code
+	}
+	return ""
+}
+
 type FindUserBillResponse struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -546,53 +554,54 @@ var file_service_user_bill_proto_rawDesc = []byte{
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 }
 
 var (
diff --git a/pkg/rpc/protos/service_user_bill.proto b/pkg/rpc/protos/service_user_bill.proto
index f2615f7..8d9fa79 100644
--- a/pkg/rpc/protos/service_user_bill.proto
+++ b/pkg/rpc/protos/service_user_bill.proto
@@ -56,7 +56,8 @@ message ListUserBillsResponse {
 
 // 查找账单信息
 message FindUserBillRequest {
-	int64 userBillId = 1;
+	int64 userBillId = 1; // ID，和单号二选一
+	string code = 2; // 单号
 }
 
 message FindUserBillResponse {