diff --git a/server/marketserver/api/v1/recharge/recharge.go b/server/marketserver/api/v1/recharge/recharge.go
index 0a8af6c2..7b392597 100644
--- a/server/marketserver/api/v1/recharge/recharge.go
+++ b/server/marketserver/api/v1/recharge/recharge.go
@@ -29,9 +29,9 @@ func (ea *RechargeApi) RechargeList(c *gin.Context) {
 	mt.Table.Recharge.RawMetaTable.Traverse(func(tb *mt.Recharge) bool {
 		tmpmap := map[string]interface{}{}
 		tmpmap["goods_id"] = tb.GetId()
-		tmpmap["diamond"] = tb.GetRechargeItemNum()
-		tmpmap["currency"] = tb.GetRechargeCurrency()
-		tmpmap["price"] = tb.GetRechargeCostNum()
+		tmpmap["diamond"] = tb.GetDiamond()
+		//tmpmap["currency"] = tb.GetRechargeCurrency()
+		tmpmap["price"] = tb.GetPrice()
 
 		rspObj.Rows = append(rspObj.Rows, tmpmap)
 
@@ -53,16 +53,22 @@ func (this *RechargeApi) Buy(c *gin.Context) {
 		f5.RspErr(c, 1, err.Error())
 		return
 	}
+	if reqJson.Num <= 0 {
+		f5.RspErr(c, 2, "num param error")
+		return
+	}
 	currencyMeta := mt.Table.RechargeCurrency.Get()
 	if currencyMeta == nil {
 		f5.RspErr(c, 2, "server internal error")
 		return
 	}
-	if currencyMeta.GetExchangeRate() <= 0 || currencyMeta.GetExchangeRate() > 1000 {
+	if currencyMeta.GetExchangeRate() <= 0 ||
+		currencyMeta.GetExchangeRate() > constant.RECHARGE_CURRENCY_MAX_EXCHANGE_RAET {
 		f5.RspErr(c, 2, "server internal error")
 		return
 	}
-	if currencyMeta.GetCurrencyDecimal() <= 0 || currencyMeta.GetCurrencyDecimal() > 10 {
+	if currencyMeta.GetCurrencyDecimal() <= 0 ||
+		currencyMeta.GetCurrencyDecimal() > constant.RECHARGE_CURRENCY_MAX_DECIMAL {
 		f5.RspErr(c, 2, "server internal error")
 		return
 	}
@@ -101,7 +107,7 @@ func (this *RechargeApi) Buy(c *gin.Context) {
 			return
 		}
 	}
-	price := currencyMeta.GetCurrencyDecimal() * q5.ToInt64(reqJson.Num)
+	price := q5.PowInt64(10, currencyMeta.GetCurrencyDecimal()) * q5.ToInt64(reqJson.Num)
 	params := map[string]string{
 		"c":                "BcService",
 		"a":                "recharge",
diff --git a/server/marketserver/constant/constant.go b/server/marketserver/constant/constant.go
index eed5e807..03ac120b 100644
--- a/server/marketserver/constant/constant.go
+++ b/server/marketserver/constant/constant.go
@@ -17,3 +17,9 @@ const (
 const (
 	SHOPCART_MAX_GOODS_NUM = 20
 )
+
+const (
+	RECHARGE_CURRENCY_MAX_EXCHANGE_RAET = 50
+	RECHARGE_CURRENCY_MAX_DECIMAL = 6
+	RECHARGE_CURRENCY_MAX_BUY_NUM = 9999
+)
diff --git a/server/marketserver/mtb/mtb.auto_gen.go b/server/marketserver/mtb/mtb.auto_gen.go
index 16ed6db5..cdc502b1 100644
--- a/server/marketserver/mtb/mtb.auto_gen.go
+++ b/server/marketserver/mtb/mtb.auto_gen.go
@@ -88,13 +88,10 @@ type Language struct {
 }
 
 type Recharge struct {
-        recharge_cost_num string
-        recharge_icon string
-        recharge_item int32
-        recharge_type int32
-        recharge_item_num int32
         id int32
-        recharge_currency string
+        diamond int32
+        price int32
+        max_buy_times int32
 
         _flags1_ uint64
         _flags2_ uint64
@@ -394,60 +391,36 @@ func (this *Language) HasEn() bool {
         return (this._flags1_ & (uint64(1) << 2)) > 0
 }
 
-func (this *Recharge) GetRechargeCostNum() string {
-        return this.recharge_cost_num
-}
-
-func (this *Recharge) HasRechargeCostNum() bool {
-        return (this._flags1_ & (uint64(1) << 1)) > 0
-}
-
-func (this *Recharge) GetRechargeIcon() string {
-        return this.recharge_icon
-}
-
-func (this *Recharge) HasRechargeIcon() bool {
-        return (this._flags1_ & (uint64(1) << 2)) > 0
-}
-
-func (this *Recharge) GetRechargeItem() int32 {
-        return this.recharge_item
-}
-
-func (this *Recharge) HasRechargeItem() bool {
-        return (this._flags1_ & (uint64(1) << 3)) > 0
-}
-
-func (this *Recharge) GetRechargeType() int32 {
-        return this.recharge_type
-}
-
-func (this *Recharge) HasRechargeType() bool {
-        return (this._flags1_ & (uint64(1) << 4)) > 0
-}
-
-func (this *Recharge) GetRechargeItemNum() int32 {
-        return this.recharge_item_num
-}
-
-func (this *Recharge) HasRechargeItemNum() bool {
-        return (this._flags1_ & (uint64(1) << 5)) > 0
-}
-
 func (this *Recharge) GetId() int32 {
         return this.id
 }
 
 func (this *Recharge) HasId() bool {
-        return (this._flags1_ & (uint64(1) << 6)) > 0
+        return (this._flags1_ & (uint64(1) << 1)) > 0
 }
 
-func (this *Recharge) GetRechargeCurrency() string {
-        return this.recharge_currency
+func (this *Recharge) GetDiamond() int32 {
+        return this.diamond
 }
 
-func (this *Recharge) HasRechargeCurrency() bool {
-        return (this._flags1_ & (uint64(1) << 7)) > 0
+func (this *Recharge) HasDiamond() bool {
+        return (this._flags1_ & (uint64(1) << 2)) > 0
+}
+
+func (this *Recharge) GetPrice() int32 {
+        return this.price
+}
+
+func (this *Recharge) HasPrice() bool {
+        return (this._flags1_ & (uint64(1) << 3)) > 0
+}
+
+func (this *Recharge) GetMaxBuyTimes() int32 {
+        return this.max_buy_times
+}
+
+func (this *Recharge) HasMaxBuyTimes() bool {
+        return (this._flags1_ & (uint64(1) << 4)) > 0
 }
 
 func (this *Web3ServiceCluster) GetUrl() string {
@@ -527,13 +500,10 @@ func (this *Language) LoadFromKv(kv map[string]interface{}) {
 }
 
 func (this *Recharge) LoadFromKv(kv map[string]interface{}) {
-        f5.ReadMetaTableField(&this.recharge_cost_num, "recharge_cost_num", &this._flags1_, 1, kv)
-        f5.ReadMetaTableField(&this.recharge_icon, "recharge_icon", &this._flags1_, 2, kv)
-        f5.ReadMetaTableField(&this.recharge_item, "recharge_item", &this._flags1_, 3, kv)
-        f5.ReadMetaTableField(&this.recharge_type, "recharge_type", &this._flags1_, 4, kv)
-        f5.ReadMetaTableField(&this.recharge_item_num, "recharge_item_num", &this._flags1_, 5, kv)
-        f5.ReadMetaTableField(&this.id, "id", &this._flags1_, 6, kv)
-        f5.ReadMetaTableField(&this.recharge_currency, "recharge_currency", &this._flags1_, 7, kv)
+        f5.ReadMetaTableField(&this.id, "id", &this._flags1_, 1, kv)
+        f5.ReadMetaTableField(&this.diamond, "diamond", &this._flags1_, 2, kv)
+        f5.ReadMetaTableField(&this.price, "price", &this._flags1_, 3, kv)
+        f5.ReadMetaTableField(&this.max_buy_times, "max_buy_times", &this._flags1_, 4, kv)
 }
 
 func (this *Web3ServiceCluster) LoadFromKv(kv map[string]interface{}) {
diff --git a/server/marketserver/proto/mt.proto b/server/marketserver/proto/mt.proto
index a9746062..c9c4e5e2 100644
--- a/server/marketserver/proto/mt.proto
+++ b/server/marketserver/proto/mt.proto
@@ -71,13 +71,10 @@ message Language
 
 message Recharge
 {
-    optional string recharge_cost_num = 1;
-    optional string recharge_icon     =2;
-    optional int32 recharge_item     =3;
-    optional int32 recharge_type     =4;
-    optional int32 recharge_item_num =5;
-    optional int32 id                =6;
-    optional string recharge_currency = 7;
+    optional int32 id = 1;
+    optional int32 diamond = 2;
+    optional int32 price = 3;
+    optional int32 max_buy_times = 4;
 }
 
 message Web3ServiceCluster
diff --git a/third_party/q5 b/third_party/q5
index 489449c6..b065fccf 160000
--- a/third_party/q5
+++ b/third_party/q5
@@ -1 +1 @@
-Subproject commit 489449c65d408c649ec4ceeb3fa1ad48a692eb61
+Subproject commit b065fccf5cc960b8a411841424ef1de29dceb3ec