diff --git a/composer.json b/composer.json
index bf5d131..96ddda7 100644
--- a/composer.json
+++ b/composer.json
@@ -24,7 +24,7 @@
         "php-amqplib/php-amqplib": "^3.0",
         "psr/container": "^1.0|^2.0",
         "psr/event-dispatcher": "^1.0",
-        "psr/log": "^1.0"
+        "psr/log": "^1.0|^2.0|^3.0"
     },
     "suggest": {
         "hyperf/di": "Required to use annotations.",
diff --git a/src/AMQPConnection.php b/src/AMQPConnection.php
index 2358fb8..cec45b7 100644
--- a/src/AMQPConnection.php
+++ b/src/AMQPConnection.php
@@ -11,6 +11,9 @@
  */
 namespace Hyperf\Amqp;
 
+use Hyperf\Amqp\Exception\LoopBrokenException;
+use Hyperf\Amqp\Exception\SendChannelClosedException;
+use Hyperf\Amqp\Exception\SendChannelTimeoutException;
 use Hyperf\Engine\Channel;
 use Hyperf\Utils\Coordinator\Constants;
 use Hyperf\Utils\Coordinator\CoordinatorManager;
@@ -75,6 +78,11 @@ class AMQPConnection extends AbstractConnection
      */
     protected $exited = false;
 
+    /**
+     * @var Channel
+     */
+    protected $chan;
+
     public function __construct(
         string $user,
         string $password,
@@ -90,6 +98,7 @@ public function __construct(
     ) {
         $this->channelManager = new ChannelManager(16);
         $this->channelManager->get(0, true);
+        $this->chan = $this->channelManager->make(65535);
 
         parent::__construct($user, $password, $vhost, $insist, $login_method, $login_response, $locale, $io, $heartbeat, $connection_timeout, $channel_rpc_timeout);
 
@@ -101,7 +110,13 @@ public function write($data)
     {
         $this->loop();
 
-        parent::write($data);
+        $this->chan->push($data, 5);
+        if ($this->chan->isClosing()) {
+            throw new SendChannelClosedException('Writing data failed, because send channel closed.');
+        }
+        if ($this->chan->isTimeout()) {
+            throw new SendChannelTimeoutException('Writing data failed, because send channel timeout.');
+        }
     }
 
     /**
@@ -191,6 +206,8 @@ public function close($reply_code = 0, $reply_text = '', $method_sig = [0, 0])
         try {
             $res = parent::close($reply_code, $reply_text, $method_sig);
         } finally {
+            $this->setIsConnected(false);
+            $this->chan->close();
             $this->channelManager->flush();
         }
         return $res;
@@ -218,6 +235,34 @@ protected function loop(): void
 
         $this->loop = true;
 
+        Coroutine::create(function () {
+            try {
+                while (true) {
+                    $data = $this->chan->pop(-1);
+                    if ($this->chan->isClosing()) {
+                        throw new SendChannelClosedException('Write failed, because send channel closed.');
+                    }
+
+                    if ($data === false || $data === '') {
+                        throw new LoopBrokenException('Push channel broken or write empty string for connection.');
+                    }
+
+                    parent::write($data);
+                }
+            } catch (\Throwable $exception) {
+                $level = $this->exited ? 'warning' : 'error';
+                $this->logger && $this->logger->log($level, 'Send loop broken. The reason is ' . (string) $exception);
+            } finally {
+                $this->loop = false;
+                if (! $this->exited) {
+                    // When loop broken, AMQPConnection will not be able to communicate with AMQP server.
+                    // So flush all recv channels to ensure closing AMQP connections quickly.
+                    $this->channelManager->flush();
+                    $this->close();
+                }
+            }
+        });
+
         Coroutine::create(function () {
             try {
                 while (true) {
@@ -274,13 +319,13 @@ protected function heartbeat(): void
 
                     try {
                         // PING
-                        if ($this->isConnected()) {
+                        if ($this->isConnected() && $this->chan->isEmpty()) {
                             $pkt = new AMQPWriter();
                             $pkt->write_octet(8);
                             $pkt->write_short(0);
                             $pkt->write_long(0);
                             $pkt->write_octet(0xCE);
-                            $this->getIO()->write($pkt->getvalue());
+                            $this->chan->push($pkt->getvalue(), 0.001);
                         }
                     } catch (\Throwable $exception) {
                         $this->logger && $this->logger->error((string) $exception);
diff --git a/src/ConnectionFactory.php b/src/ConnectionFactory.php
index c09c52b..8f72223 100644
--- a/src/ConnectionFactory.php
+++ b/src/ConnectionFactory.php
@@ -98,7 +98,8 @@ public function make(array $config): AMQPConnection
         $io = new SwooleIO(
             $host,
             $port,
-            $params->getConnectionTimeout()
+            $params->getConnectionTimeout(),
+            $params->getReadWriteTimeout(),
         );
 
         $connection = new AMQPConnection(
diff --git a/src/Consumer.php b/src/Consumer.php
index 7684555..fc9c85b 100644
--- a/src/Consumer.php
+++ b/src/Consumer.php
@@ -204,7 +204,7 @@ protected function getCallback(ConsumerMessageInterface $consumerMessage, AMQPMe
             }
             if ($result === Result::NACK) {
                 $this->logger->debug($deliveryTag . ' uacked.');
-                return $channel->basic_nack($deliveryTag);
+                return $channel->basic_nack($deliveryTag, false, $consumerMessage->isRequeue());
             }
             if ($consumerMessage->isRequeue() && $result === Result::REQUEUE) {
                 $this->logger->debug($deliveryTag . ' requeued.');
diff --git a/src/Exception/LoopBrokenException.php b/src/Exception/LoopBrokenException.php
new file mode 100644
index 0000000..454ef2b
--- /dev/null
+++ b/src/Exception/LoopBrokenException.php
@@ -0,0 +1,16 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * This file is part of Hyperf.
+ *
+ * @link     https://www.hyperf.io
+ * @document https://hyperf.wiki
+ * @contact  group@hyperf.io
+ * @license  https://github.com/hyperf/hyperf/blob/master/LICENSE
+ */
+namespace Hyperf\Amqp\Exception;
+
+class LoopBrokenException extends \RuntimeException
+{
+}
diff --git a/src/Exception/SendChannelClosedException.php b/src/Exception/SendChannelClosedException.php
new file mode 100644
index 0000000..5851a94
--- /dev/null
+++ b/src/Exception/SendChannelClosedException.php
@@ -0,0 +1,16 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * This file is part of Hyperf.
+ *
+ * @link     https://www.hyperf.io
+ * @document https://hyperf.wiki
+ * @contact  group@hyperf.io
+ * @license  https://github.com/hyperf/hyperf/blob/master/LICENSE
+ */
+namespace Hyperf\Amqp\Exception;
+
+class SendChannelClosedException extends \RuntimeException
+{
+}
diff --git a/src/Exception/SendChannelTimeoutException.php b/src/Exception/SendChannelTimeoutException.php
new file mode 100644
index 0000000..83dad48
--- /dev/null
+++ b/src/Exception/SendChannelTimeoutException.php
@@ -0,0 +1,16 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * This file is part of Hyperf.
+ *
+ * @link     https://www.hyperf.io
+ * @document https://hyperf.wiki
+ * @contact  group@hyperf.io
+ * @license  https://github.com/hyperf/hyperf/blob/master/LICENSE
+ */
+namespace Hyperf\Amqp\Exception;
+
+class SendChannelTimeoutException extends \RuntimeException
+{
+}
diff --git a/src/IO/SwooleIO.php b/src/IO/SwooleIO.php
index 21c0dd6..062baec 100644
--- a/src/IO/SwooleIO.php
+++ b/src/IO/SwooleIO.php
@@ -15,8 +15,7 @@
 use PhpAmqpLib\Exception\AMQPRuntimeException;
 use PhpAmqpLib\Wire\AMQPWriter;
 use PhpAmqpLib\Wire\IO\AbstractIO;
-use Swoole\Coroutine\Client;
-use const SWOOLE_SOCK_TCP;
+use Swoole\Coroutine\Socket;
 
 class SwooleIO extends AbstractIO
 {
@@ -40,17 +39,17 @@ class SwooleIO extends AbstractIO
     /**
      * @var int
      */
-    protected $heartbeat;
+    protected $readWriteTimeout;
 
     /**
-     * @var null|Client
+     * @var int
      */
-    private $sock;
+    protected $heartbeat;
 
     /**
-     * @var string
+     * @var null|Socket
      */
-    private $buffer = '';
+    private $sock;
 
     /**
      * @throws \InvalidArgumentException when readWriteTimeout argument does not 2x the heartbeat
@@ -58,11 +57,13 @@ class SwooleIO extends AbstractIO
     public function __construct(
         string $host,
         int $port,
-        int $connectionTimeout
+        int $connectionTimeout,
+        int $readWriteTimeout = 3
     ) {
         $this->host = $host;
         $this->port = $port;
         $this->connectionTimeout = $connectionTimeout;
+        $this->readWriteTimeout = $readWriteTimeout;
     }
 
     /**
@@ -77,34 +78,21 @@ public function connect()
 
     public function read($len)
     {
-        do {
-            if ($len <= strlen($this->buffer)) {
-                $data = substr($this->buffer, 0, $len);
-                $this->buffer = substr($this->buffer, $len);
-
-                return $data;
-            }
-
-            if (! $this->sock->isConnected()) {
-                throw new AMQPConnectionClosedException('Broken pipe or closed connection. ' . $this->sock->errMsg);
-            }
-
-            $buffer = $this->sock->recv(-1);
-
-            if ($buffer === '') {
-                throw new AMQPConnectionClosedException('Connection is closed. The reason is ' . $this->sock->errMsg);
-            }
+        $data = $this->sock->recvAll($len, $this->readWriteTimeout);
+        if ($data === false || strlen($data) !== $len) {
+            throw new AMQPConnectionClosedException('Read data failed, The reason is ' . $this->sock->errMsg);
+        }
 
-            $this->buffer .= $buffer;
-        } while (true);
+        return $data;
     }
 
     public function write($data)
     {
-        $buffer = $this->sock->send($data);
+        $len = $this->sock->sendAll($data, $this->readWriteTimeout);
 
-        if ($buffer === false) {
-            throw new AMQPConnectionClosedException('Error sending data');
+        /* @phpstan-ignore-next-line */
+        if ($data === false || strlen($data) !== $len) {
+            throw new AMQPConnectionClosedException('Send data failed, The reason is ' . $this->sock->errMsg);
         }
     }
 
@@ -117,7 +105,7 @@ public function close()
         $this->sock && $this->sock->close();
     }
 
-    public function select($sec, $usec)
+    public function select($sec, $usec = 0)
     {
         return 1;
     }
@@ -134,7 +122,7 @@ public function reenableHeartbeat()
 
     protected function makeClient()
     {
-        $sock = new Client(SWOOLE_SOCK_TCP);
+        $sock = new Socket(AF_INET, SOCK_STREAM, 0);
         if (! $sock->connect($this->host, $this->port, $this->connectionTimeout)) {
             throw new AMQPRuntimeException(
                 sprintf('Error Connecting to server: %s ', $sock->errMsg),
diff --git a/src/Message/ConsumerDelayedMessageTrait.php b/src/Message/ConsumerDelayedMessageTrait.php
new file mode 100644
index 0000000..9827321
--- /dev/null
+++ b/src/Message/ConsumerDelayedMessageTrait.php
@@ -0,0 +1,35 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * This file is part of Hyperf.
+ *
+ * @link     https://www.hyperf.io
+ * @document https://hyperf.wiki
+ * @contact  group@hyperf.io
+ * @license  https://github.com/hyperf/hyperf/blob/master/LICENSE
+ */
+namespace Hyperf\Amqp\Message;
+
+use Hyperf\Amqp\Builder\QueueBuilder;
+use PhpAmqpLib\Wire\AMQPTable;
+
+/**
+ * @method ConsumerMessage getQueue()
+ */
+trait ConsumerDelayedMessageTrait
+{
+    /**
+     * Overwrite.
+     */
+    public function getQueueBuilder(): QueueBuilder
+    {
+        return (new QueueBuilder())->setQueue((string) $this->getQueue())
+            ->setArguments(new AMQPTable(['x-dead-letter-exchange' => $this->getDeadLetterExchange()]));
+    }
+
+    protected function getDeadLetterExchange(): string
+    {
+        return 'delayed';
+    }
+}
diff --git a/src/Message/ProducerDelayedMessageTrait.php b/src/Message/ProducerDelayedMessageTrait.php
new file mode 100644
index 0000000..10cf8b6
--- /dev/null
+++ b/src/Message/ProducerDelayedMessageTrait.php
@@ -0,0 +1,43 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * This file is part of Hyperf.
+ *
+ * @link     https://www.hyperf.io
+ * @document https://hyperf.wiki
+ * @contact  group@hyperf.io
+ * @license  https://github.com/hyperf/hyperf/blob/master/LICENSE
+ */
+namespace Hyperf\Amqp\Message;
+
+use Hyperf\Amqp\Builder\ExchangeBuilder;
+use PhpAmqpLib\Wire\AMQPTable;
+
+/**
+ * @method ProducerMessage getExchange()
+ * @method ProducerMessage getType()
+ * @property ProducerMessage $properties
+ */
+trait ProducerDelayedMessageTrait
+{
+    /**
+     * Set the delay time.
+     * @return $this
+     */
+    public function setDelayMs(int $millisecond, string $name = 'x-delay'): self
+    {
+        $this->properties['application_headers'] = new AMQPTable([$name => $millisecond]);
+        return $this;
+    }
+
+    /**
+     * Overwrite.
+     */
+    public function getExchangeBuilder(): ExchangeBuilder
+    {
+        return (new ExchangeBuilder())->setExchange((string) $this->getExchange())
+            ->setType('x-delayed-message')
+            ->setArguments(new AMQPTable(['x-delayed-type' => $this->getType()]));
+    }
+}
diff --git a/tests/ConsumerTest.php b/tests/ConsumerTest.php
index d6af64a..2eac0c6 100644
--- a/tests/ConsumerTest.php
+++ b/tests/ConsumerTest.php
@@ -18,6 +18,8 @@
 use Hyperf\Utils\Reflection\ClassInvoker;
 use HyperfTest\Amqp\Stub\AMQPConnectionStub;
 use HyperfTest\Amqp\Stub\ContainerStub;
+use HyperfTest\Amqp\Stub\Delay2Consumer;
+use HyperfTest\Amqp\Stub\DelayConsumer;
 use Mockery;
 use PHPUnit\Framework\TestCase;
 use Psr\Log\LoggerInterface;
@@ -56,4 +58,13 @@ public function testWaitChannel()
         $chan->close();
         $invoker->wait_channel(1);
     }
+
+    public function testRewriteDelayMessage()
+    {
+        $consumer = new DelayConsumer();
+        $this->assertSame('x-delayed', (new ClassInvoker($consumer))->getDeadLetterExchange());
+
+        $consumer = new Delay2Consumer();
+        $this->assertSame('delayed', (new ClassInvoker($consumer))->getDeadLetterExchange());
+    }
 }
diff --git a/tests/Stub/Delay2Consumer.php b/tests/Stub/Delay2Consumer.php
new file mode 100644
index 0000000..186ea21
--- /dev/null
+++ b/tests/Stub/Delay2Consumer.php
@@ -0,0 +1,20 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * This file is part of Hyperf.
+ *
+ * @link     https://www.hyperf.io
+ * @document https://hyperf.wiki
+ * @contact  group@hyperf.io
+ * @license  https://github.com/hyperf/hyperf/blob/master/LICENSE
+ */
+namespace HyperfTest\Amqp\Stub;
+
+use Hyperf\Amqp\Message\ConsumerDelayedMessageTrait;
+use Hyperf\Amqp\Message\ConsumerMessage;
+
+class Delay2Consumer extends ConsumerMessage
+{
+    use ConsumerDelayedMessageTrait;
+}
diff --git a/tests/Stub/DelayConsumer.php b/tests/Stub/DelayConsumer.php
new file mode 100644
index 0000000..8a8b704
--- /dev/null
+++ b/tests/Stub/DelayConsumer.php
@@ -0,0 +1,25 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * This file is part of Hyperf.
+ *
+ * @link     https://www.hyperf.io
+ * @document https://hyperf.wiki
+ * @contact  group@hyperf.io
+ * @license  https://github.com/hyperf/hyperf/blob/master/LICENSE
+ */
+namespace HyperfTest\Amqp\Stub;
+
+use Hyperf\Amqp\Message\ConsumerDelayedMessageTrait;
+use Hyperf\Amqp\Message\ConsumerMessage;
+
+class DelayConsumer extends ConsumerMessage
+{
+    use ConsumerDelayedMessageTrait;
+
+    protected function getDeadLetterExchange(): string
+    {
+        return 'x-delayed';
+    }
+}