diff --git a/server/marketserver/api/v1/shopcart/shopcart.go b/server/marketserver/api/v1/shopcart/shopcart.go
index 2ff035df..87752323 100644
--- a/server/marketserver/api/v1/shopcart/shopcart.go
+++ b/server/marketserver/api/v1/shopcart/shopcart.go
@@ -139,7 +139,6 @@ func (this *ShopCartApi) Add(c *gin.Context) {
 				cartDb := common.NewShopCart()
 				dirty := false
 				if q5.DecodeJson(ds.GetByName("data"), cartDb) == nil {
-					//newGoods := []*common.ShopCartGoods{}
 					for _, val := range reqJson.Tokens {
 						netId := q5.SafeToInt32(reqJson.NetId)
 						contractAddress := val.ContractAddress
@@ -165,6 +164,14 @@ func (this *ShopCartApi) Add(c *gin.Context) {
 									err1 = err
 									if err == nil {
 										if ds.Next() {
+											cartDb.CurrSortIdx += 1
+											g := common.NewShopCartGoods()
+											g.NetId = netId
+											g.ContractAddress = contractAddress
+											g.TokenId = tokenId
+											g.SortIdx = cartDb.CurrSortIdx
+											g.AddTime = q5.ToInt32(f5.GetApp().GetRealSeconds())
+											q5.AppendSlice(&cartDb.Goods, g)
 										} else {
 										}
 									}
@@ -180,6 +187,7 @@ func (this *ShopCartApi) Add(c *gin.Context) {
 					}
 				}
 				if dirty {
+					cartDb.DeleteExcessData()
 					this.save(openId, cartDb)
 				}
 				c.JSON(200, rspObj)
diff --git a/server/marketserver/common/types.go b/server/marketserver/common/types.go
index 4463d6f8..e503567e 100644
--- a/server/marketserver/common/types.go
+++ b/server/marketserver/common/types.go
@@ -126,8 +126,20 @@ func (this* ShopCart) GetGoods(netId int32, contractAddress string, tokenId stri
 	return nil
 }
 
+func (this* ShopCart) DeleteExcessData() {
+	q5.Sort[ShopCartGoods](this.Goods,
+		func (a *ShopCartGoods, b *ShopCartGoods) bool{
+			return a.SortIdx < b.SortIdx
+		})
+}
+
 func NewShopCart() *ShopCart {
 	p := new(ShopCart)
 	q5.NewSlice(&p.Goods, 0, 10)
 	return p
 }
+
+func NewShopCartGoods() *ShopCartGoods {
+	p := new(ShopCartGoods)
+	return p
+}
diff --git a/server/marketserver/constant/constant.go b/server/marketserver/constant/constant.go
index ef999ac8..2aab0e07 100644
--- a/server/marketserver/constant/constant.go
+++ b/server/marketserver/constant/constant.go
@@ -33,3 +33,7 @@ const (
 	CONTRACT_NAME_CFHero = "CFHero"
 	CONTRACT_NAME_GoldBrick = "GoldBrick"
 )
+
+const (
+	SHOPCART_MAX_GOODS_NUM = 20
+)