diff --git a/android/src/main/java/com/im/easemob/ChatManager.java b/android/src/main/java/com/im/easemob/ChatManager.java
index f182336..c290148 100644
--- a/android/src/main/java/com/im/easemob/ChatManager.java
+++ b/android/src/main/java/com/im/easemob/ChatManager.java
@@ -290,6 +290,20 @@ public void markAllMessagesAsRead(ReadableMap params, Promise promise) {
         EMClient.getInstance().chatManager().getConversation(conversationId, chatType, true).markAllMessagesAsRead();
         promise.resolve(null);
     }
+    
+    @ReactMethod
+    public void markMessageAsRead(final ReadableMap params, final Promise promise) {
+        if (CheckUtil.checkParamKey(params, new String[]{ "from", "messageId"}, promise)) {
+            return;
+        }
+        try {
+            EMClient.getInstance().chatManager().ackMessageRead(params.getString("from"), params.getString("messageId"));
+            promise.resolve(true);
+        } catch (Exception e) {
+            e.printStackTrace();
+            promise.reject(e);
+        }
+    }
 
     private EMMessage buildSendMessage(Context context, ReadableMap params) {
         EMMessage.Type messageType = EasemobConverter.toMessageType(params.getInt("messageType"));
diff --git a/android/src/main/java/com/im/easemob/EasemobListener.java b/android/src/main/java/com/im/easemob/EasemobListener.java
index 34388e1..8a94173 100644
--- a/android/src/main/java/com/im/easemob/EasemobListener.java
+++ b/android/src/main/java/com/im/easemob/EasemobListener.java
@@ -30,6 +30,7 @@
 import static com.im.easemob.IMConstant.GROUP_MANAGER_DELEGATE;
 import static com.im.easemob.IMConstant.GROUP_OWNER_DID_UPDATE;
 import static com.im.easemob.IMConstant.MESSAGE_DID_RECEIVE;
+import static com.im.easemob.IMConstant.MESSAGE_DID_READ;
 import static com.im.easemob.IMConstant.USER_ACCOUNT_DID_LOGIN_FROM_OTHER_DEVICE;
 import static com.im.easemob.IMConstant.USER_ACCOUNT_DID_REMOVE_FROM_SERVER;
 import static com.im.easemob.IMConstant.USER_DID_JOIN_GROUP;
@@ -217,7 +218,8 @@ public void onCmdMessageReceived(List<EMMessage> list) {
 
     @Override
     public void onMessageRead(List<EMMessage> list) {
-
+        EasemobHelper.getInstance().sendEvent(CHAT_MANAGER_DELEGATE, MESSAGE_DID_READ, EasemobConverter
+                .convertList(list));
     }
 
     @Override
diff --git a/android/src/main/java/com/im/easemob/IMConstant.java b/android/src/main/java/com/im/easemob/IMConstant.java
index 280cb0e..ac1a4bc 100644
--- a/android/src/main/java/com/im/easemob/IMConstant.java
+++ b/android/src/main/java/com/im/easemob/IMConstant.java
@@ -61,6 +61,7 @@ public static class EMMessageDirection {
     }
 
     public static final String MESSAGE_DID_RECEIVE = "messageDidReceive";
+    public static final String MESSAGE_DID_READ = "messageDidRead";
     public static final String CMD_MESSAGE_DID_RECEIVE = "cmdMessageDidReceive";
     public static final String CONVERSATION_LIST_DID_UPDATE = "conversationListDidUpdate";
 
diff --git a/ios/easemob/ChatManager.m b/ios/easemob/ChatManager.m
index 8a24b4c..be231c2 100644
--- a/ios/easemob/ChatManager.m
+++ b/ios/easemob/ChatManager.m
@@ -277,6 +277,22 @@ @implementation ChatManager
     }
 }
 
+RCT_EXPORT_METHOD(markMessageAsRead:(NSString *)params
+                  resolver:(RCTPromiseResolveBlock)resolve
+                  rejecter:(RCTPromiseRejectBlock)reject) {
+    NSDictionary *allParams = [params jsonStringToDictionary];
+    NSString *from = [allParams objectForKey:@"from"];
+    NSString *messageId = [allParams objectForKey:@"messageId"];
+
+    [[EMClient sharedClient].chatManager sendMessageReadAck:messageId toUser:from completion:^(EMError *aError){
+        if(!aError){
+            resolve(@"{}");
+        }else{
+            reject([NSString stringWithFormat:@"%ld", (NSInteger)aError.code], aError.errorDescription, nil);
+        }
+    }];
+}
+
 RCT_EXPORT_METHOD(deleteAllMessages:(NSString *)params
                   resolver:(RCTPromiseResolveBlock)resolve
                   rejecter:(RCTPromiseRejectBlock)reject) {
diff --git a/ios/easemob/ChatManagerDelegate.m b/ios/easemob/ChatManagerDelegate.m
index 857348a..7ab9514 100644
--- a/ios/easemob/ChatManagerDelegate.m
+++ b/ios/easemob/ChatManagerDelegate.m
@@ -36,6 +36,14 @@ - (void)cmdMessagesDidReceive:(NSArray *)aCmdMessages {
     [Client sendEventByType:eventType subType:@"cmdMessageDidReceive" data:dicArray];
 }
 
+- (void) messagesDidRead:(NSArray *)aMessages {
+    NSMutableArray *dicArray = [NSMutableArray array];
+    [aMessages enumerateObjectsUsingBlock:^(id  _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
+        [dicArray addObject:[obj objectToDictionary]];
+    }];
+    [Client sendEventByType:eventType subType:@"messageDidRead" data:dicArray];
+}
+
 - (void)conversationListDidUpdate:(NSArray *)aConversationList {
     NSMutableArray *dicArray = [NSMutableArray array];
     [aConversationList enumerateObjectsUsingBlock:^(id  _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
diff --git a/src/eventemitter.js b/src/eventemitter.js
index 55c3b7a..5a40f26 100644
--- a/src/eventemitter.js
+++ b/src/eventemitter.js
@@ -33,6 +33,11 @@ export const setMessageDidReceive = setCallback(ChatManager, 'messageDidReceive'
  */
 export const setCmdMessageDidReceive = setCallback(ChatManager, 'cmdMessageDidReceive');
 
+/**
+ * 设置消息已读事件回调。
+ */
+ export const setMessageDidRead = setCallback(ChatManager,'messageDidRead');
+ 
 /**
  * 设置离开群组事件回调。
  */