diff --git a/.idea/compiler.xml b/.idea/compiler.xml
index ce6099b..0e2a437 100644
--- a/.idea/compiler.xml
+++ b/.idea/compiler.xml
@@ -6,13 +6,13 @@
         <sourceOutputDir name="target/generated-sources/annotations" />
         <sourceTestOutputDir name="target/generated-test-sources/test-annotations" />
         <outputRelativeToContentRoot value="true" />
-        <module name="mmq-config" />
+        <module name="mmq-rule-engine" />
         <module name="mmq-web" />
         <module name="mmq-broker" />
         <module name="mmq-plugs" />
         <module name="mmq-auth" />
         <module name="mmq-core" />
-        <module name="mmq-rule-engine" />
+        <module name="mmq-config" />
         <module name="mmq-api" />
       </profile>
     </annotationProcessing>
diff --git a/mmq-broker/src/main/java/org/monkey/mmq/protocol/BrokerHandler.java b/mmq-broker/src/main/java/org/monkey/mmq/protocol/BrokerHandler.java
index 0f2b4c0..010e868 100644
--- a/mmq-broker/src/main/java/org/monkey/mmq/protocol/BrokerHandler.java
+++ b/mmq-broker/src/main/java/org/monkey/mmq/protocol/BrokerHandler.java
@@ -31,10 +31,14 @@
 import org.monkey.mmq.core.exception.MmqException;
 import org.monkey.mmq.core.actor.metadata.message.SessionMateData;
 import org.monkey.mmq.core.actor.message.SystemMessage;
+import org.monkey.mmq.core.utils.JacksonUtils;
 
 import java.io.IOException;
+import java.net.InetSocketAddress;
+import java.util.HashMap;
+import java.util.Map;
 
-import static org.monkey.mmq.core.common.Constants.MODULES;
+import static org.monkey.mmq.core.common.Constants.*;
 
 /**
  * MQTT消息处理
@@ -94,7 +98,20 @@ public void channelRead(ChannelHandlerContext ctx, Object obj) {
 				case CONNECT:
 					//protocolProcess.getConnectExecutor().submit(() -> {
 						try {
+							MqttConnectMessage mqttConnectMessage = (MqttConnectMessage) msg;
 							protocolProcess.connect().processConnect(ctx.channel(), (MqttConnectMessage) msg);
+							SystemMessage systemMessage = new SystemMessage();
+							systemMessage.setTopic(CLIENT_CONNECT  + "/" + mqttConnectMessage.payload().clientIdentifier());
+							Map payload = new HashMap();
+							payload.put("clientId", mqttConnectMessage.payload().clientIdentifier());
+//							payload.put("username", mqttConnectMessage.payload().userName());
+							InetSocketAddress clientIpSocket = (InetSocketAddress)ctx.channel().remoteAddress();
+							String clientIp = clientIpSocket.getAddress().getHostAddress();
+							payload.put("ip", clientIp);
+							systemMessage.setPayload(JacksonUtils.toJson(payload));
+							systemMessage.setMqttQoS(MqttQoS.AT_LEAST_ONCE);
+							ActorSelection actorRef = actorSystem.actorSelection("/user/" + ((MqttConnectMessage) msg).payload().clientIdentifier());
+							actorRef.tell(systemMessage, ActorRef.noSender());
 						} catch (MmqException e) {
 							Loggers.BROKER_SERVER.error(e.getErrMsg());
 							SystemMessage systemMessage = new SystemMessage();
diff --git a/mmq-broker/src/main/java/org/monkey/mmq/protocol/DisConnect.java b/mmq-broker/src/main/java/org/monkey/mmq/protocol/DisConnect.java
index 7c69e8d..3abce2e 100644
--- a/mmq-broker/src/main/java/org/monkey/mmq/protocol/DisConnect.java
+++ b/mmq-broker/src/main/java/org/monkey/mmq/protocol/DisConnect.java
@@ -16,11 +16,16 @@
 
 package org.monkey.mmq.protocol;
 
+import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
-import io.netty.handler.codec.mqtt.MqttMessage;
+import io.netty.channel.ChannelFuture;
+import io.netty.channel.ChannelFutureListener;
+import io.netty.handler.codec.mqtt.*;
 import io.netty.util.AttributeKey;
 import org.monkey.mmq.config.Loggers;
+import org.monkey.mmq.core.actor.metadata.subscribe.SubscribeMateData;
 import org.monkey.mmq.core.exception.MmqException;
+import org.monkey.mmq.core.utils.JacksonUtils;
 import org.monkey.mmq.core.utils.LoggerUtils;
 import org.monkey.mmq.core.actor.metadata.message.SessionMateData;
 import org.monkey.mmq.service.DupPubRelMessageStoreService;
@@ -28,6 +33,13 @@
 import org.monkey.mmq.service.SessionStoreService;
 import org.monkey.mmq.service.SubscribeStoreService;
 
+import java.net.InetSocketAddress;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import static org.monkey.mmq.core.common.Constants.CLIENT_DISCONNECT;
+
 
 /**
  * DISCONNECT连接处理
@@ -66,6 +78,24 @@ public void processDisConnect(Channel channel, MqttMessage msg) throws MmqExcept
 		}
 		LoggerUtils.printIfDebugEnabled(Loggers.BROKER_PROTOCOL,"DISCONNECT - clientId: {}, cleanSession: {}", clientId, sessionStore.isCleanSession());
 		sessionStoreService.delete(clientId, channel.id().asLongText());
+
+		// 发送设备下线通知
+		List<SubscribeMateData> subscribeStores = subscribeStoreService.search(CLIENT_DISCONNECT + "/" + clientId);
+		subscribeStores.forEach(subscribeStore -> {
+			Map payload = new HashMap();
+			payload.put("clientId", clientId);
+			InetSocketAddress clientIpSocket = (InetSocketAddress) channel.remoteAddress();
+			String clientIp = clientIpSocket.getAddress().getHostAddress();
+			payload.put("ip", clientIp);
+			MqttQoS respQoS = MqttQoS.AT_LEAST_ONCE;
+			MqttPublishMessage publishMessage = (MqttPublishMessage) MqttMessageFactory.newMessage(
+					new MqttFixedHeader(MqttMessageType.PUBLISH, false, respQoS, false, 0),
+					new MqttPublishVariableHeader(CLIENT_DISCONNECT + "/" + clientId, 0), Unpooled.buffer().writeBytes(JacksonUtils.toJson(payload).getBytes()));
+			SessionMateData subSession = sessionStoreService.get(subscribeStore.getClientId());
+			if (subSession != null) {
+				subSession.getChannel().writeAndFlush(publishMessage);
+			}
+		});
 		channel.close();
 	}
 
diff --git a/mmq-core/src/main/java/org/monkey/mmq/core/common/Constants.java b/mmq-core/src/main/java/org/monkey/mmq/core/common/Constants.java
index f79fe47..fb5acd2 100644
--- a/mmq-core/src/main/java/org/monkey/mmq/core/common/Constants.java
+++ b/mmq-core/src/main/java/org/monkey/mmq/core/common/Constants.java
@@ -50,4 +50,8 @@ public class Constants {
     public static final String RULE_ENGINE =  SYSTOPIC + "/RULE";
 
     public static final String MODULES =  SYSTOPIC + "/MODULES";
+
+    public static final String CLIENT_CONNECT =  SYSTOPIC + "/client/connected";
+
+    public static final String CLIENT_DISCONNECT =  SYSTOPIC + "/client/disconnected";
 }