diff --git a/sysservice/tcpservice/tcpservice.go b/sysservice/tcpservice/tcpservice.go
index dcc64dd..d6aee8a 100644
--- a/sysservice/tcpservice/tcpservice.go
+++ b/sysservice/tcpservice/tcpservice.go
@@ -74,7 +74,7 @@ func (tcpService *TcpService) genId() uint64 {
 
 
 func GetNodeId(agentId uint64) int {
-	return int(agentId>>54)
+	return int(agentId>>50)
 }
 
 func (tcpService *TcpService) OnInit() error{