diff --git a/cmd/stock/main.go b/cmd/stock/main.go
index 29bbfde..a1c164c 100644
--- a/cmd/stock/main.go
+++ b/cmd/stock/main.go
@@ -97,7 +97,6 @@ func main() {
 			}
 		}
 
-
 		user.ForEachUser(func(u *user.User) bool {
 			if u.IsStop() {
 				return true
@@ -172,6 +171,10 @@ func main() {
 					logx.Errorf("get stock err: %v", err)
 				}
 
+				if !st.Notify() {
+					continue
+				}
+
 				msg_ := st.Msg()
 				if msg_ != "" {
 					err = msg.Send(msg_)
@@ -199,6 +202,8 @@ func main() {
 
 					return true
 				})
+
+				st.FinishSendAll()
 			}
 		}
 	})
diff --git a/stock/stock.go b/stock/stock.go
index eae47d8..d286681 100644
--- a/stock/stock.go
+++ b/stock/stock.go
@@ -30,6 +30,7 @@ type stock struct {
 	lastRise   float64
 	nowRise    float64
 	nowRiseStr string
+	needSend   bool
 }
 
 func (s *stock) Code() string {
@@ -59,6 +60,7 @@ func (s *stock) notify() bool {
 	s.nowRiseStr = fmt.Sprintf("%.2f%%", s.nowRise)
 	if (s.lastRise == 0 && rs != 0) || rs-s.lastRise >= cfg.ThresholdValue || s.lastRise-rs >= cfg.ThresholdValue {
 		s.lastRise = rs
+		s.needSend = true
 		return true
 	}
 	return false
@@ -250,12 +252,32 @@ func (sk *stocks) Update() error {
 	return nil
 }
 
+func (sk *stocks) Notify() bool {
+	sk.mx.RLock()
+	defer sk.mx.RUnlock()
+	var notify bool
+	for _, s := range sk.stkMap {
+		if s.notify() {
+			notify = true
+		}
+	}
+	return notify
+}
+
+func (sk *stocks) FinishSendAll() {
+	sk.mx.Lock()
+	defer sk.mx.Unlock()
+	for _, s := range sk.stkMap {
+		s.needSend = false
+	}
+}
+
 func (sk *stocks) Msg() string {
 	sk.mx.RLock()
 	defer sk.mx.RUnlock()
 	var resp string
 	for _, s := range sk.stkMap {
-		if s.notify() {
+		if s.needSend {
 			msg := s.Msg()
 			resp = resp + msg + "\n"
 		}