diff --git a/server/marketserver/cache/cachemgr.go b/server/marketserver/cache/cachemgr.go
index af8767dc..1162eeb1 100644
--- a/server/marketserver/cache/cachemgr.go
+++ b/server/marketserver/cache/cachemgr.go
@@ -47,31 +47,37 @@ func (this *cacheMgr) fastGetNft(dto *common.NftDto) {
 
 func (this *cacheMgr) internalGetNft(dto *common.NftDto) {
 	key := dto.GetKey()
+	if p, ok := this.nftHash.Load(key); ok {
+		if q5.GetTickCount() - (*p).refreshTick < 1000 * 15 {
+			dto.NftCache = *p
+			return
+		}
+		this.nftHash.Delete(key)
+		if !f5.IsOnlineEnv() {
+			f5.GetSysLog().Warning("remove cache %s", dto.TokenId)
+		}
+	}
+	l := f5.AllocLock(key)
+	defer f5.ReleaseLock(l)
 	if p, ok := this.nftHash.Load(key); ok {
 		dto.NftCache = *p
 	} else {
-		l := f5.AllocLock(key)
-		defer f5.ReleaseLock(l)
-		if p, ok := this.nftHash.Load(key); ok {
-			dto.NftCache = *p
-		} else {
-			f5.GetHttpCliMgr().SendGoStyleRequest(
-				mt.Table.Config.GetGameApiUrl() + "/webapp/index.php",
-				map[string]string{
-					"c": "OutAppNft",
-					"a": "nftDetailByContractAddress",
-					"contract_address": dto.ContractAddress,
-					"net_id": q5.ToString(dto.NetId),
-					"token_id": dto.TokenId,
-				},
-				func (rsp f5.HttpCliResponse) {
-					if rsp.GetErr() == nil {
-						jsonRsp := map[string]interface{}{}
-						q5.DecodeJson(rsp.GetRawData(), &jsonRsp)
-						dto.NftCache = this.addNft(dto.NetId, dto.ContractAddress, dto.TokenId, jsonRsp)
-					}
-				})
-		}
+		f5.GetHttpCliMgr().SendGoStyleRequest(
+			mt.Table.Config.GetGameApiUrl() + "/webapp/index.php",
+			map[string]string{
+				"c": "OutAppNft",
+				"a": "nftDetailByContractAddress",
+				"contract_address": dto.ContractAddress,
+				"net_id": q5.ToString(dto.NetId),
+				"token_id": dto.TokenId,
+			},
+			func (rsp f5.HttpCliResponse) {
+				if rsp.GetErr() == nil {
+					jsonRsp := map[string]interface{}{}
+					q5.DecodeJson(rsp.GetRawData(), &jsonRsp)
+					dto.NftCache = this.addNft(dto.NetId, dto.ContractAddress, dto.TokenId, jsonRsp)
+				}
+			})
 	}
 }