diff --git a/pusher.go b/pusher.go
index 5380f52..d449848 100644
--- a/pusher.go
+++ b/pusher.go
@@ -7,6 +7,7 @@ import (
 	"go.uber.org/zap"
 	"m7s.live/engine/v4/config"
 )
+
 type IPusher interface {
 	ISubscriber
 	Push() error
@@ -31,8 +32,15 @@ func (pub *Pusher) Reconnect() (result bool) {
 func (pub *Pusher) startPush(pusher IPusher) {
 	badPusher := true
 	var err error
-	Pushers.Store(pub.RemoteURL, pusher)
-	defer Pushers.Delete(pub.RemoteURL)
+	key := pub.RemoteURL
+
+	if oldPusher, loaded := Pushers.LoadOrStore(key, pusher); loaded {
+		sub := oldPusher.(IPusher).GetSubscriber()
+		pusher.Error("pusher already exists", zap.Time("createAt", sub.StartTime))
+		return
+	}
+
+	defer Pushers.Delete(key)
 	defer pusher.Disconnect()
 	var startTime time.Time
 	for pusher.Info("start push"); pusher.Reconnect(); pusher.Warn("restart push") {