diff --git a/src/__init__.php b/src/__init__.php
index 2d6ccc38..fa9fbd6b 100644
--- a/src/__init__.php
+++ b/src/__init__.php
@@ -32,6 +32,9 @@
         'core/Coroutine/Barrier.php',
         'core/Coroutine/Http/ClientProxy.php',
         'core/Coroutine/Http/functions.php',
+        # <core for Http2> #
+        'core/Coroutine/Http2/Client2.php',
+        'core/Coroutine/Http2/ChannelManager.php',
         # <core for connection pool> #
         'core/ConnectionPool.php',
         'core/Database/ObjectProxy.php',
diff --git a/src/core/Coroutine/Http2/ChannelManager.php b/src/core/Coroutine/Http2/ChannelManager.php
new file mode 100644
index 00000000..1f644a37
--- /dev/null
+++ b/src/core/Coroutine/Http2/ChannelManager.php
@@ -0,0 +1,61 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Swoole\Coroutine\Http2;
+
+use Swoole\Coroutine\Channel;
+
+class ChannelManager
+{
+    /**
+     * @var Channel[]
+     */
+    protected array $channels = [];
+
+    public function get(int $streamId, bool $initialize = false): ?Channel
+    {
+        if (isset($this->channels[$streamId])) {
+            return $this->channels[$streamId];
+        }
+
+        if ($initialize) {
+            return $this->channels[$streamId] = $this->make(1);
+        }
+
+        return null;
+    }
+
+    public function make(int $limit): Channel
+    {
+        return new Channel($limit);
+    }
+
+    public function close(int $streamId): void
+    {
+        if ($channel = $this->channels[$streamId] ?? null) {
+            $channel->close();
+        }
+
+        unset($this->channels[$streamId]);
+    }
+
+    public function getChannels(): array
+    {
+        return $this->channels;
+    }
+
+    public function flush(): void
+    {
+        $channels = $this->getChannels();
+        $streamIds = array_keys($channels);
+        foreach ($streamIds as $streamId) {
+            $this->close($streamId);
+        }
+    }
+
+    public function isEmpty(): bool
+    {
+        return count($this->channels) === 0;
+    }
+}
diff --git a/src/core/Coroutine/Http2/Client2.php b/src/core/Coroutine/Http2/Client2.php
new file mode 100644
index 00000000..79646b19
--- /dev/null
+++ b/src/core/Coroutine/Http2/Client2.php
@@ -0,0 +1,147 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Swoole\Coroutine\Http2;
+
+use Swoole\Coroutine\Channel;
+use Swoole\Http2\Request;
+use Swoole\Http2\Response;
+use Throwable;
+
+use function Swoole\Coroutine\go;
+
+class Client2 extends Client
+{
+    protected ?Channel $chan = null;
+
+    protected ?Channel $sleepChan = null;
+
+    protected ChannelManager $channelManager;
+
+    protected bool $idleClose = false;
+
+    protected int $lastSendTime = 0;
+
+    public function __construct(string $host, int $port = 80, bool $open_ssl = false)
+    {
+        parent::__construct($host, $port, $open_ssl);
+        $this->channelManager = new ChannelManager();
+    }
+
+    public function request(Request $request, float $timeout = -1): false|Response
+    {
+        $this->loop();
+        $streamId = $this->send($request);
+        $this->lastSendTime = time();
+
+        if ($streamId === false) {
+            return false;
+        }
+        $manager = $this->getChannelManager();
+        $chan = $manager->get($streamId, true);
+        try {
+            $data = $chan->pop($timeout);
+        } finally {
+            $manager->close($streamId);
+        }
+
+        return $data;
+    }
+
+    public function close(): bool
+    {
+        $this->getChannelManager()->flush();
+        $this->chan?->close();
+        $this->chan = null;
+        $this->sleepChan?->close();
+        $this->sleepChan = null;
+        return parent::close();
+    }
+
+    protected function getChannelManager(): ChannelManager
+    {
+        return $this->channelManager;
+    }
+
+    protected function reconnect(): bool
+    {
+        parent::close();
+        return parent::connect();
+    }
+
+    protected function loop(): void
+    {
+        $this->idleClose();
+
+        if ($this->chan !== null) {
+            return;
+        }
+        $this->chan = new Channel(65535);
+
+        if (! $this->ping()) {
+            $this->reconnect();
+        }
+        go(
+            function () {
+                $reason = '';
+                try {
+                    $chan = $this->chan;
+                    while (true) {
+                        $response = $this->recv();
+
+                        if ($chan?->errCode !== SWOOLE_CHANNEL_OK) {
+                            $reason = 'channel closed.';
+                            break;
+                        }
+
+                        if ($response === false) {
+                            $reason = 'client broken.';
+                            break;
+                        }
+
+                        if ($channel = $this->getChannelManager()->get($response->streamId)) {
+                            $channel->push($response);
+                        }
+                    }
+                } catch (Throwable $exception) {
+                    swoole_error_log(SWOOLE_LOG_ERROR, (string) $exception);
+                } finally {
+                    swoole_error_log(SWOOLE_LOG_DEBUG, 'Recv loop broken, wait to restart in next time. The reason is ' . $reason);
+                    $this->close();
+                }
+            }
+        );
+    }
+
+    protected function idleClose(): void
+    {
+        if (! $this->idleClose) {
+            $this->idleClose = true;
+            go(
+                function () {
+                    try {
+                        while (true) {
+                            $this->sleep(3);
+                            if ($this->chan === null) {
+                                break;
+                            }
+                            if ($this->channelManager->isEmpty() && time() - $this->lastSendTime > 10) {
+                                $this->close();
+                                break;
+                            }
+                        }
+                    } finally {
+                        $this->idleClose = false;
+                    }
+                }
+            );
+        }
+    }
+
+    protected function sleep(float $timeout = -1): void
+    {
+        $this->sleepChan ??= new Channel(1);
+        $this->sleepChan->pop($timeout);
+    }
+}
diff --git a/tests/unit/Coroutine/Http2/ChannelManagerTest.php b/tests/unit/Coroutine/Http2/ChannelManagerTest.php
new file mode 100644
index 00000000..27a0f057
--- /dev/null
+++ b/tests/unit/Coroutine/Http2/ChannelManagerTest.php
@@ -0,0 +1,59 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Swoole\Coroutine\Http2;
+
+use PHPUnit\Framework\Attributes\CoversClass;
+use PHPUnit\Framework\TestCase;
+use Swoole\Coroutine\Channel;
+
+use function Swoole\Coroutine\go;
+use function Swoole\Coroutine\run;
+
+/**
+ * @internal
+ */
+#[CoversClass(ChannelManager::class)]
+class ChannelManagerTest extends TestCase
+{
+    public function testChannelManager()
+    {
+        run(
+            function () {
+                $manager = new ChannelManager();
+                $chan = $manager->get(1, true);
+                $this->assertInstanceOf(Channel::class, $chan);
+                $chan = $manager->get(1);
+                $this->assertInstanceOf(Channel::class, $chan);
+                go(
+                    function () use ($chan) {
+                        usleep(10 * 1000);
+                        $chan->push('Hello World.');
+                    }
+                );
+
+                $this->assertSame('Hello World.', $chan->pop());
+                $manager->close(1);
+                $this->assertNull($manager->get(1));
+            }
+        );
+    }
+
+    public function testChannelFlush()
+    {
+        run(
+            function () {
+                $manager = new ChannelManager();
+                $manager->get(1, true);
+                $manager->get(2, true);
+                $manager->get(4, true);
+                $manager->get(5, true);
+
+                $this->assertSame(4, count($manager->getChannels()));
+                $manager->flush();
+                $this->assertSame(0, count($manager->getChannels()));
+            }
+        );
+    }
+}
diff --git a/tests/unit/Coroutine/Http2/Client2Test.php b/tests/unit/Coroutine/Http2/Client2Test.php
new file mode 100644
index 00000000..1b8aca0f
--- /dev/null
+++ b/tests/unit/Coroutine/Http2/Client2Test.php
@@ -0,0 +1,57 @@
+<?php
+
+/**
+ * This file is part of Swoole.
+ *
+ * @see     https://www.swoole.com
+ * @contact  team@swoole.com
+ * @license  https://github.com/swoole/library/blob/master/LICENSE
+ */
+
+declare(strict_types=1);
+
+namespace Swoole\Coroutine\Http2;
+
+use PHPUnit\Framework\Attributes\CoversClass;
+use PHPUnit\Framework\TestCase;
+use Swoole\Http2\Request;
+
+use function Swoole\Coroutine\go;
+use function Swoole\Coroutine\run;
+
+/**
+ * @internal
+ */
+#[CoversClass(Client2::class)]
+class Client2Test extends TestCase
+{
+    public function testRequest(): void
+    {
+        run(function () {
+            $domain = 'httpbin.org';
+            $client = new Client2($domain, 443, true);
+            $client->set([
+                'timeout' => -1,
+                'ssl_host_name' => $domain,
+            ]);
+            $client->connect();
+            for ($i = 1; $i < 30; ++$i) {
+                go(function () use ($client, $i) {
+                    $req = new Request();
+                    $req->method = 'POST';
+                    $req->path = '/post';
+                    $req->headers = [
+                        'host' => '127.0.0.1',
+                        'user-agent' => 'Chrome/49.0.2587.3',
+                        'accept' => 'text/html,application/xhtml+xml,application/xml',
+                        'accept-encoding' => 'gzip',
+                    ];
+                    $req->data = (string) $i;
+                    $data = $client->request($req);
+                    $result = json_decode($data->data, true);
+                    $this->assertEquals($i, (int) $result['data']);
+                });
+            }
+        });
+    }
+}