diff --git a/bcs/network/p2pv2/client.go b/bcs/network/p2pv2/client.go
index 6b08ae76..3043fd7f 100644
--- a/bcs/network/p2pv2/client.go
+++ b/bcs/network/p2pv2/client.go
@@ -7,6 +7,7 @@ import (
 	"sync"
 	"time"
 
+	"github.com/patrickmn/go-cache"
 	"github.com/xuperchain/xupercore/lib/metrics"
 
 	xctx "github.com/xuperchain/xupercore/kernel/common/xcontext"
@@ -301,7 +302,8 @@ func (p *P2PServerV2) GetPeerIdByAccount(account string) (peer.ID, error) {
 		return "", fmt.Errorf("address error: %s, address=%s", err, value)
 	}
 
-	// 当前节点缓存 account=>peerID 1小时，dht 中默认是 36h，如果超过 36h 可能导致节点重启时不能参与共识。
-	p.accounts.Set(key, peerID, time.Hour*1)
+	// 此处设置不过期，在 putValue 时设置过期时间为最大值及不会过期
+	// 即使重启程序，也不会影响从网络中查询数据。
+	p.accounts.Set(key, peerID, cache.NoExpiration)
 	return peerID, nil
 }
diff --git a/bcs/network/p2pv2/server.go b/bcs/network/p2pv2/server.go
index 15346195..3be29a73 100644
--- a/bcs/network/p2pv2/server.go
+++ b/bcs/network/p2pv2/server.go
@@ -4,6 +4,7 @@ import (
 	"context"
 	"errors"
 	"fmt"
+	"math"
 	"strings"
 	"time"
 
@@ -132,6 +133,7 @@ func (p *P2PServerV2) Init(ctx *netCtx.NetCtx) error {
 
 	// dht
 	dhtOpts := []dht.Option{
+		dht.MaxRecordAge(math.MaxInt64), // record never expire, default 36 hours.
 		dht.Mode(dht.ModeServer),
 		dht.RoutingTableRefreshPeriod(10 * time.Second),
 		dht.ProtocolPrefix(protocol.ID(prefix)),
@@ -383,8 +385,8 @@ func (p *P2PServerV2) PeerInfo() pb.PeerInfo {
 				p.log.Warn("get account error", "peerID", peerID, "error", err)
 			} else {
 				accountStr = string(account)
-				// 更新缓存，过期时间设置为4小时
-				p.peerIDs.Set(key, accountStr, time.Hour*4)
+				// 更新缓存，缓存数据不过期
+				p.peerIDs.Set(key, accountStr, cache.NoExpiration)
 			}
 		}