diff --git a/core/src/main/golang/event/event.go b/core/src/main/golang/event/event.go
index 9c2100d..17a8be6 100644
--- a/core/src/main/golang/event/event.go
+++ b/core/src/main/golang/event/event.go
@@ -7,6 +7,13 @@ var (
 	handleClose func()
 )
 
+const (
+	EventClose        = 0
+	EventLog          = 1
+	EventProxyChanged = 2
+	EventTraffic      = 3
+)
+
 func SetHandlers(send func([]byte), close func()) error {
 	if handleSend != nil || handleClose != nil {
 		return errors.New("Already registered")
@@ -22,3 +29,9 @@ func ClearHandlers() {
 	handleSend = nil
 	handleClose = nil
 }
+
+func send(buf []byte) {
+	if handleSend != nil {
+		handleSend(buf)
+	}
+}
diff --git a/core/src/main/golang/event/log.go b/core/src/main/golang/event/log.go
index 0e4b82e..656a1ae 100644
--- a/core/src/main/golang/event/log.go
+++ b/core/src/main/golang/event/log.go
@@ -1 +1,79 @@
 package event
+
+import "github.com/Dreamacro/clash/log"
+
+import "encoding/json"
+
+import "encoding/binary"
+
+var logExit chan int = nil
+
+func StartLogEvent() {
+	if logExit != nil {
+		return
+	}
+
+	go func() {
+		logExit = make(chan int)
+		sub := log.Subscribe()
+
+		defer log.UnSubscribe(sub)
+		defer func() {
+			close(logExit)
+			logExit = nil
+		}()
+
+		for {
+			select {
+			case data := <-sub:
+				log := data.(*log.Event)
+
+				if log == nil {
+					continue
+				}
+
+				var message struct {
+					Type    int    `json:"type"`
+					Message string `json:"message"`
+				}
+
+				message.Type = levelToInt(log.LogLevel)
+				message.Message = log.Payload
+
+				s, _ := json.Marshal(&message)
+
+				var prefix [4]byte
+
+				binary.BigEndian.PutUint32(prefix[:], EventLog)
+
+				send(append(prefix[:], s[:]...))
+
+			case <-logExit:
+				return
+			}
+		}
+	}()
+}
+
+func StopLogEvent() {
+	if logExit == nil {
+		return
+	}
+
+	logExit <- 0
+}
+
+func levelToInt(level log.LogLevel) int {
+	switch level {
+	case log.DEBUG:
+		return 1
+	case log.INFO:
+		return 2
+	case log.WARNING:
+		return 3
+	case log.ERROR:
+		return 4
+	}
+
+	return 1
+}
diff --git a/core/src/main/java/com/github/kr328/clash/core/serialization/Parcels.kt b/core/src/main/java/com/github/kr328/clash/core/serialization/Parcels.kt
index daddd62..6199388 100644
--- a/core/src/main/java/com/github/kr328/clash/core/serialization/Parcels.kt
+++ b/core/src/main/java/com/github/kr328/clash/core/serialization/Parcels.kt
@@ -38,4 +38,6 @@ object Parcels : AbstractSerialFormat(EmptyModule) {
             return nextObject ?: throw NullPointerException("Parcel read data null")
         }
     }
-}
\ No newline at end of file
+}
+
+