diff --git a/server/marketserver/api/v1/recharge/recharge.go b/server/marketserver/api/v1/recharge/recharge.go
index 21277831..1f8af597 100644
--- a/server/marketserver/api/v1/recharge/recharge.go
+++ b/server/marketserver/api/v1/recharge/recharge.go
@@ -53,10 +53,6 @@ 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(reqJson.NetId)
 	if currencyMeta == nil {
 		f5.RspErr(c, 2, "server internal error")
@@ -82,7 +78,7 @@ func (this *RechargeApi) Buy(c *gin.Context) {
 		f5.RspErr(c, 2, "goods id param error")
 		return
 	}
-	if reqJson.Num < 0 {
+	if reqJson.Num < 0 || reqJson.Num > goodsMeta.GetMaxBuyTimes() {
 		f5.RspErr(c, 2, "num param error")
 		return
 	}