diff --git a/api/service/OrderMember.go b/api/service/OrderMember.go
index af726e0..a8c1c34 100644
--- a/api/service/OrderMember.go
+++ b/api/service/OrderMember.go
@@ -124,7 +124,7 @@ func (r *OrderMemberService) AddOrderMember(tx *gorm.DB, UserId, SystemMemberId
 	payTime = nil   // 支付时间
 
 	// 生成订单号
-	orderNo := global.Snowflake.Generate().String()
+	orderNo := "M" + global.Snowflake.Generate().String()
 
 	// 创建订单
 	orderMember = &model.OrderMember{
diff --git a/api/service/OrderSingle.go b/api/service/OrderSingle.go
index 41c7e52..48dd89f 100644
--- a/api/service/OrderSingle.go
+++ b/api/service/OrderSingle.go
@@ -124,7 +124,7 @@ func (r *OrderSingleService) AddOrderSingle(tx *gorm.DB, UserId, QuestionId int6
 	}
 
 	// 生成订单号
-	orderNo := global.Snowflake.Generate().String()
+	orderNo := "S" + global.Snowflake.Generate().String()
 
 	// 创建订单
 	orderSingle = &model.OrderSingle{