diff --git a/cron/plugin.go b/cron/plugin.go
index 1a2857ac..fee101e4 100644
--- a/cron/plugin.go
+++ b/cron/plugin.go
@@ -7,6 +7,10 @@ import (
 	"log"
 	"strings"
 	"time"
+	"github.com/toolkits/file"
+	"os/exec"
+	"fmt"
+	"errors"
 )
 
 func SyncMinePlugins() {
@@ -21,7 +25,9 @@ func SyncMinePlugins() {
 	if g.Config().Heartbeat.Addr == "" {
 		return
 	}
-
+	if err := UpdatePlugin(); err != nil {
+		log.Fatalln(err.Error())
+	}
 	go syncMinePlugins()
 }
 
@@ -82,3 +88,31 @@ func syncMinePlugins() {
 
 	}
 }
+//如果插件启用,则用git地址下载插件
+func UpdatePlugin() error {
+	if !g.Config().Plugin.Enabled {
+		return nil
+	}
+	dir := g.Config().Plugin.Dir
+	parentDir := file.Dir(dir)
+	file.InsureDir(parentDir)
+
+	if file.IsExist(dir) {
+		// git pull
+		cmd := exec.Command("git", "pull")
+		cmd.Dir = dir
+		err := cmd.Run()
+		if err != nil {
+			return errors.New(fmt.Sprintf("git pull in dir:%s fail. error: %s", dir, err))
+		}
+	} else {
+		// git clone
+		cmd := exec.Command("git", "clone", g.Config().Plugin.Git, file.Basename(dir))
+		cmd.Dir = parentDir
+		err := cmd.Run()
+		if err != nil {
+			return errors.New((fmt.Sprintf("git clone plugin url:%s into dir:%s fail. error: %s", g.Config().Plugin.Git, dir, err)))
+		}
+	}
+	return nil
+}
diff --git a/http/plugin.go b/http/plugin.go
index ba7e7919..56bad852 100644
--- a/http/plugin.go
+++ b/http/plugin.go
@@ -7,6 +7,7 @@ import (
 	"github.com/toolkits/file"
 	"net/http"
 	"os/exec"
+	"github.com/open-falcon/agent/cron"
 )
 
 func configPluginRoutes() {
@@ -15,31 +16,10 @@ func configPluginRoutes() {
 			w.Write([]byte("plugin not enabled"))
 			return
 		}
-
-		dir := g.Config().Plugin.Dir
-		parentDir := file.Dir(dir)
-		file.InsureDir(parentDir)
-
-		if file.IsExist(dir) {
-			// git pull
-			cmd := exec.Command("git", "pull")
-			cmd.Dir = dir
-			err := cmd.Run()
-			if err != nil {
-				w.Write([]byte(fmt.Sprintf("git pull in dir:%s fail. error: %s", dir, err)))
-				return
-			}
-		} else {
-			// git clone
-			cmd := exec.Command("git", "clone", g.Config().Plugin.Git, file.Basename(dir))
-			cmd.Dir = parentDir
-			err := cmd.Run()
-			if err != nil {
-				w.Write([]byte(fmt.Sprintf("git clone in dir:%s fail. error: %s", parentDir, err)))
-				return
-			}
+		if err := cron.UpdatePlugin(); err != nil {
+			w.Write([]byte(err.Error()))
+			return
 		}
-
 		w.Write([]byte("success"))
 	})