diff --git a/bin/csctl/cmd/upgrade.go b/bin/csctl/cmd/upgrade.go
index e7a0874..32e8893 100644
--- a/bin/csctl/cmd/upgrade.go
+++ b/bin/csctl/cmd/upgrade.go
@@ -31,7 +31,7 @@ var UpgradeCmd = &cobra.Command{
 			ea.Exit("invalid version number")
 		}
 
-		nodesById := getIPMapper(ea)
+		nodesById := getIPMapper(ea, prever)
 		if prever < "0.3.0" {
 			fmt.Println("upgrading data to version 0.3.0")
 			if to_0_3_0(ea, nodesById) {
@@ -48,7 +48,7 @@ var UpgradeCmd = &cobra.Command{
 	},
 }
 
-func getIPMapper(ea *ExitAction) map[string]*cronsun.Node {
+func getIPMapper(ea *ExitAction, prever string) map[string]*cronsun.Node {
 	nodes, err := cronsun.GetNodes()
 	if err != nil {
 		ea.Exit("failed to fetch nodes from MongoDB: %s", err.Error())
@@ -61,6 +61,9 @@ func getIPMapper(ea *ExitAction) map[string]*cronsun.Node {
 			continue
 		}
 
+		if prever < "0.3.0" {
+			n.RmOldInfo()
+		}
 		ipMapper[n.IP] = n
 	}
 
diff --git a/node.go b/node.go
index 8a9533e..2916e5a 100644
--- a/node.go
+++ b/node.go
@@ -102,7 +102,6 @@ func RemoveNode(query interface{}) error {
 	return mgoDB.WithC(Coll_Node, func(c *mgo.Collection) error {
 		return c.Remove(query)
 	})
-
 }
 
 func ISNodeAlive(id string) (bool, error) {
@@ -155,3 +154,9 @@ func (n *Node) Down() {
 		log.Errorf(err.Error())
 	}
 }
+
+// RmOldInfo remove old version(< 0.3.0) node info
+func (n *Node) RmOldInfo() {
+	RemoveNode(bson.M{"_id": n.IP})
+	DefalutClient.Delete(conf.Config.Node + n.IP)
+}
diff --git a/node/csctl.go b/node/csctl.go
index f61a779..31b8594 100644
--- a/node/csctl.go
+++ b/node/csctl.go
@@ -3,10 +3,7 @@ package node
 import (
 	"encoding/json"
 
-	"gopkg.in/mgo.v2/bson"
-
 	"github.com/shunfei/cronsun"
-	"github.com/shunfei/cronsun/conf"
 	"github.com/shunfei/cronsun/log"
 )
 
@@ -25,15 +22,9 @@ func (n *Node) executCsctlCmd(key, value []byte) error {
 
 	switch cmd.Cmd {
 	case cronsun.NodeCmdRmOld:
-		n.rmOld()
+		n.Node.RmOldInfo()
 	}
 
 	log.Infof("%s execute csctl command[%s] success", n.String(), cmd.Cmd.String())
 	return nil
 }
-
-func (n *Node) rmOld() {
-	// remove old version(< 0.3.0) node info
-	cronsun.RemoveNode(bson.M{"_id": n.IP})
-	cronsun.DefalutClient.Delete(conf.Config.Node + n.IP)
-}