diff --git a/broker/config/wildfirechat.conf b/broker/config/wildfirechat.conf
index 5c6c8c65..fa08ebb1 100755
--- a/broker/config/wildfirechat.conf
+++ b/broker/config/wildfirechat.conf
@@ -61,6 +61,9 @@ message.remote_history_message 0
 ##服务器为每个用户缓存的消息数量。这个值改得太大，拉取消息时间变长，另外会占用大量内存。
 message.max_queue 1024
 
+##是否允许陌生人聊天
+message.disable_stranger_chat false
+
 #*********************************************************************
 # hazelcase configuration
 #*********************************************************************
diff --git a/broker/src/main/java/io/moquette/BrokerConstants.java b/broker/src/main/java/io/moquette/BrokerConstants.java
index b7c11754..b8845451 100755
--- a/broker/src/main/java/io/moquette/BrokerConstants.java
+++ b/broker/src/main/java/io/moquette/BrokerConstants.java
@@ -117,6 +117,10 @@ public final class BrokerConstants {
 
     public static final String MESSAGE_Max_Queue = "message.max_queue";
 
+    public static final String MESSAGE_Disable_Stranger_Chat = "message.disable_stranger_chat";
+
+
+
 
 
     private BrokerConstants() {
diff --git a/broker/src/main/java/io/moquette/imhandler/SendMessageHandler.java b/broker/src/main/java/io/moquette/imhandler/SendMessageHandler.java
index 9de0458b..1dc5f970 100644
--- a/broker/src/main/java/io/moquette/imhandler/SendMessageHandler.java
+++ b/broker/src/main/java/io/moquette/imhandler/SendMessageHandler.java
@@ -39,6 +39,7 @@ public class SendMessageHandler extends IMHandler<WFCMessage.Message> {
         } catch (Exception e) {
             e.printStackTrace();
         }
+
     }
 
     @Override
@@ -56,12 +57,12 @@ public class SendMessageHandler extends IMHandler<WFCMessage.Message> {
                 }
 
                 if (message.getConversation().getType() == ProtoConstants.ConversationType.ConversationType_Private) {
-                    if (m_messagesStore.isBlacked(message.getConversation().getTarget(), fromUser)) {
-                        return ErrorCode.ERROR_CODE_IN_BLACK_LIST;
+                    errorCode = m_messagesStore.isAllowUserMessage(message.getConversation().getTarget(), fromUser);
+                    if (errorCode != ErrorCode.ERROR_CODE_SUCCESS) {
+                        return errorCode;
                     }
                 }
 
-
                 if (message.getConversation().getType() == ProtoConstants.ConversationType.ConversationType_Group ) {
                     errorCode = m_messagesStore.canSendMessageInGroup(fromUser, message.getConversation().getTarget());
                     if (errorCode != ErrorCode.ERROR_CODE_SUCCESS) {
diff --git a/broker/src/main/java/io/moquette/persistence/MemoryMessagesStore.java b/broker/src/main/java/io/moquette/persistence/MemoryMessagesStore.java
index 0ba32860..0b45a2a5 100755
--- a/broker/src/main/java/io/moquette/persistence/MemoryMessagesStore.java
+++ b/broker/src/main/java/io/moquette/persistence/MemoryMessagesStore.java
@@ -25,6 +25,7 @@ import com.hazelcast.util.StringUtil;
 import com.xiaoleilu.loServer.model.FriendData;
 import cn.wildfirechat.pojos.InputOutputUserBlockStatus;
 import cn.wildfirechat.common.ErrorCode;
+import io.moquette.BrokerConstants;
 import io.moquette.server.Constants;
 import io.moquette.server.Server;
 import io.moquette.spi.IMatchingCondition;
@@ -118,12 +119,20 @@ public class MemoryMessagesStore implements IMessagesStore {
     private ConcurrentHashMap<String, Boolean> userPushHiddenDetail = new ConcurrentHashMap<>();
     private ConcurrentHashMap<String, Boolean> userConvSlientMap = new ConcurrentHashMap<>();
 
+    private boolean mDisableStrangerChat = false;
+
     MemoryMessagesStore(Server server, DatabaseStore databaseStore) {
         m_Server = server;
         this.databaseStore = databaseStore;
         IS_MESSAGE_ROAMING = "1".equals(m_Server.getConfig().getProperty(MESSAGE_ROAMING));
         IS_MESSAGE_REMOTE_HISTORY_MESSAGE = "1".equals(m_Server.getConfig().getProperty(MESSAGE_Remote_History_Message));
         Constants.MAX_MESSAGE_QUEUE = Integer.parseInt(m_Server.getConfig().getProperty(MESSAGE_Max_Queue));
+
+        try {
+            mDisableStrangerChat = Boolean.parseBoolean(Server.getConfig().getProperty(BrokerConstants.MESSAGE_Disable_Stranger_Chat));
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
     }
 
     @Override
@@ -1624,7 +1633,7 @@ public class MemoryMessagesStore implements IMessagesStore {
     }
 
     @Override
-    public boolean isBlacked(String fromUser, String userId) {
+    public ErrorCode isAllowUserMessage(String fromUser, String userId) {
         HazelcastInstance hzInstance = m_Server.getHazelcastInstance();
         MultiMap<String, FriendData> friendsMap = hzInstance.getMultiMap(USER_FRIENDS);
 
@@ -1637,14 +1646,18 @@ public class MemoryMessagesStore implements IMessagesStore {
         for (FriendData friendData : friendDatas) {
             if (friendData.getFriendUid().equals(userId)) {
                 if (friendData.getBlacked() == 1) {
-                    return true;
+                    return ErrorCode.ERROR_CODE_IN_BLACK_LIST;
                 } else {
-                    return false;
+                    return ErrorCode.ERROR_CODE_SUCCESS;
                 }
             }
         }
 
-        return false;
+        if (mDisableStrangerChat) {
+            return ErrorCode.ERROR_CODE_NOT_RIGHT;
+        }
+
+        return ErrorCode.ERROR_CODE_SUCCESS;
     }
 
     @Override
diff --git a/broker/src/main/java/io/moquette/spi/IMessagesStore.java b/broker/src/main/java/io/moquette/spi/IMessagesStore.java
index 690535d6..de350de4 100755
--- a/broker/src/main/java/io/moquette/spi/IMessagesStore.java
+++ b/broker/src/main/java/io/moquette/spi/IMessagesStore.java
@@ -167,7 +167,7 @@ public interface IMessagesStore {
     ErrorCode deleteFriend(String userId, String friendUid, long[] head);
     ErrorCode blackUserRequest(String fromUser, String targetUserId, int status, long[] head);
     ErrorCode SyncFriendRequestUnread(String userId, long unreadDt, long[] head);
-    boolean isBlacked(String fromUser, String userId);
+    ErrorCode isAllowUserMessage(String fromUser, String userId);
     ErrorCode setFriendAliasRequest(String fromUser, String targetUserId, String alias, long[] head);
 
     ErrorCode handleJoinChatroom(String userId, String clientId, String chatroomId);
diff --git a/distribution/src/main/resources/wildfirechat.conf b/distribution/src/main/resources/wildfirechat.conf
index 82cd7bf0..5f32367d 100755
--- a/distribution/src/main/resources/wildfirechat.conf
+++ b/distribution/src/main/resources/wildfirechat.conf
@@ -52,6 +52,9 @@ message.remote_history_message 0
 ##服务器为每个用户缓存的消息数量。这个值改得太大，拉取消息时间变长，另外会占用大量内存。
 message.max_queue 1024
 
+##是否允许陌生人聊天
+message.disable_stranger_chat false
+
 #*********************************************************************
 # hazelcase configuration
 #*********************************************************************