diff --git a/api/api.go b/api/api.go
index 69efa6d..0a251b8 100644
--- a/api/api.go
+++ b/api/api.go
@@ -42,16 +42,15 @@ type Client struct {
 	Key      string
 	NodeType string
 	//EnableSS2022     bool
-	EnableVless      bool
-	EnableXTLS       bool
-	SpeedLimit       float64
-	DeviceLimit      int
-	LocalRuleList    []DetectRule
-	RemoteRuleCache  *Rule
-	access           sync.Mutex
-	NodeInfoRspMd5   [16]byte
-	NodeRuleRspMd5   [16]byte
-	UserListCheckNum int
+	EnableVless     bool
+	EnableXTLS      bool
+	SpeedLimit      float64
+	DeviceLimit     int
+	LocalRuleList   []DetectRule
+	RemoteRuleCache *Rule
+	access          sync.Mutex
+	NodeInfoRspMd5  [16]byte
+	NodeRuleRspMd5  [16]byte
 }
 
 func New(apiConfig *Config) API {
diff --git a/api/user.go b/api/user.go
index ff94f65..0e106ca 100644
--- a/api/user.go
+++ b/api/user.go
@@ -69,16 +69,6 @@ func (c *Client) GetUserList() (UserList *[]UserInfo, err error) {
 	if err != nil {
 		return nil, fmt.Errorf("unmarshal userlist error: %s", err)
 	}
-	l := len(userList.Data)
-	checkNum := userList.Data[l-1].UID + userList.Data[l/2-1].UID +
-		userList.Data[l/3-1].UID + userList.Data[l/4-1].UID +
-		userList.Data[l/5-1].UID + userList.Data[0].UID
-	if c.UserListCheckNum != 0 {
-		if c.UserListCheckNum == checkNum {
-			return nil, nil
-		}
-	}
-	c.UserListCheckNum = checkNum
 	return &userList.Data, nil
 }
 
diff --git a/service/controller/controller.go b/service/controller/controller.go
index 00278a2..d0ec6b5 100644
--- a/service/controller/controller.go
+++ b/service/controller/controller.go
@@ -190,9 +190,7 @@ func (c *Controller) nodeInfoMonitor() (err error) {
 		return nil
 	}
 	if nodeInfoChanged {
-		if newUserInfo != nil {
-			c.userList = newUserInfo
-		}
+		c.userList = newUserInfo
 		newUserInfo = nil
 		err = c.addNewUser(c.userList, newNodeInfo)
 		if err != nil {
@@ -206,7 +204,7 @@ func (c *Controller) nodeInfoMonitor() (err error) {
 			return nil
 		}
 		runtime.GC()
-	} else if newUserInfo != nil {
+	} else {
 		deleted, added := compareUserList(c.userList, newUserInfo)
 		if len(deleted) > 0 {
 			deletedEmail := make([]string, len(deleted))
@@ -337,15 +335,15 @@ func (c *Controller) addNewUserFromIndex(userInfo *[]api.UserInfo, userIndex *[]
 }
 
 func compareUserList(old, new *[]api.UserInfo) (deleted, added []int) {
-	tmp := map[int]struct{}{}
-	tmp2 := map[int]struct{}{}
+	tmp := map[string]struct{}{}
+	tmp2 := map[string]struct{}{}
 	for i := range *old {
-		tmp[(*old)[i].UID] = struct{}{}
+		tmp[(*old)[i].GetUserEmail()] = struct{}{}
 	}
 	l := len(tmp)
 	for i := range *new {
-		tmp[(*new)[i].UID] = struct{}{}
-		tmp2[(*new)[i].UID] = struct{}{}
+		tmp[(*old)[i].GetUserEmail()] = struct{}{}
+		tmp2[(*new)[i].GetUserEmail()] = struct{}{}
 		if l != len(tmp) {
 			added = append(added, i)
 			l++
@@ -354,7 +352,7 @@ func compareUserList(old, new *[]api.UserInfo) (deleted, added []int) {
 	tmp = nil
 	l = len(tmp2)
 	for i := range *old {
-		tmp2[(*old)[i].UID] = struct{}{}
+		tmp2[(*old)[i].GetUserEmail()] = struct{}{}
 		if l != len(tmp2) {
 			deleted = append(deleted, i)
 			l++