diff --git a/cmd/dashboard/controller/common_page.go b/cmd/dashboard/controller/common_page.go
index 7198032..e1552a1 100644
--- a/cmd/dashboard/controller/common_page.go
+++ b/cmd/dashboard/controller/common_page.go
@@ -90,8 +90,8 @@ func (p *commonPage) service(c *gin.Context) {
 }
 
 func (cp *commonPage) home(c *gin.Context) {
-	dao.ServerLock.RLock()
-	defer dao.ServerLock.RUnlock()
+	dao.SortedServerLock.RLock()
+	defer dao.SortedServerLock.RUnlock()
 
 	c.HTML(http.StatusOK, "theme-"+dao.Conf.Site.Theme+"/home", mygin.CommonEnvironment(c, gin.H{
 		"Servers":    dao.SortedServerList,
@@ -115,9 +115,9 @@ func (cp *commonPage) ws(c *gin.Context) {
 	}
 	defer conn.Close()
 	for {
-		dao.ServerLock.RLock()
+		dao.SortedServerLock.RLock()
 		err = conn.WriteJSON(dao.SortedServerList)
-		dao.ServerLock.RUnlock()
+		dao.SortedServerLock.RUnlock()
 		if err != nil {
 			break
 		}
diff --git a/cmd/dashboard/controller/member_api.go b/cmd/dashboard/controller/member_api.go
index 4231a85..41d0f59 100644
--- a/cmd/dashboard/controller/member_api.go
+++ b/cmd/dashboard/controller/member_api.go
@@ -53,11 +53,11 @@ func (ma *memberAPI) delete(c *gin.Context) {
 	var err error
 	switch c.Param("model") {
 	case "server":
-		dao.ServerLock.Lock()
-		defer dao.ServerLock.Unlock()
 		err = dao.DB.Delete(&model.Server{}, "id = ?", id).Error
 		if err == nil {
+			dao.ServerLock.Lock()
 			delete(dao.ServerList, id)
+			dao.ServerLock.Unlock()
 			dao.ReSortServer()
 		}
 	case "notification":
@@ -109,14 +109,10 @@ func (ma *memberAPI) addOrEditServer(c *gin.Context) {
 		s.ID = sf.ID
 		s.Tag = sf.Tag
 		if sf.ID == 0 {
-			dao.ServerLock.Lock()
-			defer dao.ServerLock.Unlock()
 			s.Secret = com.MD5(fmt.Sprintf("%s%s%d", time.Now(), sf.Name, admin.ID))
 			s.Secret = s.Secret[:10]
 			err = dao.DB.Create(&s).Error
 		} else {
-			dao.ServerLock.RLock()
-			defer dao.ServerLock.RUnlock()
 			isEdit = true
 			err = dao.DB.Save(&s).Error
 		}
@@ -129,13 +125,18 @@ func (ma *memberAPI) addOrEditServer(c *gin.Context) {
 		return
 	}
 	if isEdit {
+		dao.ServerLock.RLock()
 		s.Host = dao.ServerList[s.ID].Host
 		s.State = dao.ServerList[s.ID].State
+		dao.ServerList[s.ID] = &s
+		dao.ServerLock.RUnlock()
 	} else {
 		s.Host = &model.Host{}
 		s.State = &model.HostState{}
+		dao.ServerLock.Lock()
+		dao.ServerList[s.ID] = &s
+		dao.ServerLock.Unlock()
 	}
-	dao.ServerList[s.ID] = &s
 	dao.ReSortServer()
 	c.JSON(http.StatusOK, model.Response{
 		Code: http.StatusOK,
diff --git a/cmd/dashboard/controller/member_page.go b/cmd/dashboard/controller/member_page.go
index 3fdb698..e155557 100644
--- a/cmd/dashboard/controller/member_page.go
+++ b/cmd/dashboard/controller/member_page.go
@@ -29,8 +29,8 @@ func (mp *memberPage) serve() {
 }
 
 func (mp *memberPage) server(c *gin.Context) {
-	dao.ServerLock.RLock()
-	defer dao.ServerLock.RUnlock()
+	dao.SortedServerLock.RLock()
+	defer dao.SortedServerLock.RUnlock()
 	c.HTML(http.StatusOK, "dashboard/server", mygin.CommonEnvironment(c, gin.H{
 		"Title":   "服务器管理",
 		"Servers": dao.SortedServerList,
diff --git a/cmd/dashboard/rpc/rpc.go b/cmd/dashboard/rpc/rpc.go
index 4b3928c..2aaf9fb 100644
--- a/cmd/dashboard/rpc/rpc.go
+++ b/cmd/dashboard/rpc/rpc.go
@@ -31,7 +31,7 @@ func DispatchTask(duration time.Duration) {
 		var tasks []model.Monitor
 		var hasAliveAgent bool
 		dao.DB.Find(&tasks)
-		dao.ServerLock.RLock()
+		dao.SortedServerLock.RLock()
 		startedAt := time.Now()
 		for i := 0; i < len(tasks); i++ {
 			if index >= uint64(len(dao.SortedServerList)) {
@@ -50,7 +50,7 @@ func DispatchTask(duration time.Duration) {
 			dao.SortedServerList[index].TaskStream.Send(tasks[i].PB())
 			index++
 		}
-		dao.ServerLock.RUnlock()
+		dao.SortedServerLock.RUnlock()
 		time.Sleep(time.Until(startedAt.Add(duration)))
 	}
 }
diff --git a/service/dao/dao.go b/service/dao/dao.go
index 69b96d0..3724af6 100644
--- a/service/dao/dao.go
+++ b/service/dao/dao.go
@@ -22,13 +22,19 @@ var Cache *cache.Cache
 var DB *gorm.DB
 
 var ServerList map[uint64]*model.Server
-var SortedServerList []*model.Server
-
 var ServerLock sync.RWMutex
 
+var SortedServerList []*model.Server
+var SortedServerLock sync.RWMutex
+
 var Version = "v0.2.4"
 
 func ReSortServer() {
+	ServerLock.RLock()
+	defer ServerLock.RUnlock()
+	SortedServerLock.Lock()
+	defer SortedServerLock.Unlock()
+
 	SortedServerList = []*model.Server{}
 	for _, s := range ServerList {
 		SortedServerList = append(SortedServerList, s)