diff --git a/README.md b/README.md
index c83f320..e11980a 100644
--- a/README.md
+++ b/README.md
@@ -46,6 +46,8 @@ API 文档：[https://apidoc.gitee.com/yurunsoft/YurunHttp](https://apidoc.gitee
 
 > 每个小版本的更新日志请移步到 Release 查看
 
+v5.0.1 支持 WebSocket 压缩及指定 Opcode
+
 v5.0.0 支持 `psr/http-message` `~2.0` 版本 (PHP >= 7.1)
 
 v4.3.0 新增支持连接池
@@ -230,12 +232,19 @@ $config = $pool->getConfig();
 go(function(){
     $url = 'ws://127.0.0.1:1234/';
     $http = new HttpRequest;
+    // 启用压缩
+    // $http->websocketCompression(true);
     $client = $http->websocket($url);
     if(!$client->isConnected())
     {
         throw new \RuntimeException('Connect failed');
     }
+    // 文本
     $client->send('data');
+    // 二进制
+    $client->send('data', \Yurun\Util\YurunHttp\WebSocket\Opcode::BINARY);
+    // 更多 Opcode 预定义在：\Yurun\Util\YurunHttp\WebSocket\Opcode
+    // 也支持 WebSocket 标准中的其它 Opcode
     $recv = $client->recv();
     var_dump('recv:', $recv);
     $client->close();
diff --git a/src/HttpRequest.php b/src/HttpRequest.php
index f3fcd9f..5129a10 100644
--- a/src/HttpRequest.php
+++ b/src/HttpRequest.php
@@ -219,6 +219,13 @@ class HttpRequest
      */
     public $connectionPool;
 
+    /**
+     * 是否启用 WebSocket 压缩.
+     *
+     * @var bool
+     */
+    public $websocketCompression = false;
+
     /**
      * 代理认证方式.
      *
@@ -843,6 +850,18 @@ public function method($method)
         return $this;
     }
 
+    /**
+     * 设置是否启用 WebSocket 压缩.
+     *
+     * @return static
+     */
+    public function websocketCompression(bool $websocketCompression): self
+    {
+        $this->websocketCompression = $websocketCompression;
+
+        return $this;
+    }
+
     /**
      * 设置是否启用连接池.
      *
@@ -950,6 +969,7 @@ public function buildRequest($url = null, $requestBody = null, $method = null, $
                             ->withAttribute(Attributes::CONNECTION_POOL, $this->connectionPool)
                             ->withAttribute(Attributes::RETRY, $this->retry)
                             ->withAttribute(Attributes::RETRY_CALLBACK, $this->retryCallback)
+                            ->withAttribute(Attributes::WEBSOCKET_COMPRESSION, $this->websocketCompression)
                             ->withProtocolVersion($this->protocolVersion)
         ;
         foreach ($this->proxy as $name => $value)
diff --git a/src/YurunHttp/Attributes.php b/src/YurunHttp/Attributes.php
index cac9a3d..010f12e 100644
--- a/src/YurunHttp/Attributes.php
+++ b/src/YurunHttp/Attributes.php
@@ -179,6 +179,11 @@ abstract class Attributes
      */
     const CONNECTION_POOL = 'connection_pool';
 
+    /**
+     * WebSocket 压缩.
+     */
+    const WEBSOCKET_COMPRESSION = 'websocket_compression';
+
     /**
      * 重试计数.
      */
diff --git a/src/YurunHttp/WebSocket/IWebSocketClient.php b/src/YurunHttp/WebSocket/IWebSocketClient.php
index 7fcb978..456f5da 100644
--- a/src/YurunHttp/WebSocket/IWebSocketClient.php
+++ b/src/YurunHttp/WebSocket/IWebSocketClient.php
@@ -57,7 +57,7 @@ public function close();
      *
      * @return bool
      */
-    public function send($data);
+    public function send($data, int $opcode = Opcode::TEXT);
 
     /**
      * 接收数据.
@@ -95,4 +95,9 @@ public function getErrorMessage();
      * @return mixed
      */
     public function getClient();
+
+    /**
+     * 是否启用压缩.
+     */
+    public function isCompressed(): bool;
 }
diff --git a/src/YurunHttp/WebSocket/Opcode.php b/src/YurunHttp/WebSocket/Opcode.php
new file mode 100644
index 0000000..243339c
--- /dev/null
+++ b/src/YurunHttp/WebSocket/Opcode.php
@@ -0,0 +1,18 @@
+<?php
+
+namespace Yurun\Util\YurunHttp\WebSocket;
+
+class Opcode
+{
+    public const CONTINUATION = 0x0;
+
+    public const TEXT = 0x1;
+
+    public const BINARY = 0x2;
+
+    public const CLOSE = 0x8;
+
+    public const PING = 0x9;
+
+    public const PONG = 0xA;
+}
diff --git a/src/YurunHttp/WebSocket/Swoole.php b/src/YurunHttp/WebSocket/Swoole.php
index 3d273ba..6e838c1 100644
--- a/src/YurunHttp/WebSocket/Swoole.php
+++ b/src/YurunHttp/WebSocket/Swoole.php
@@ -42,6 +42,13 @@ class Swoole implements IWebSocketClient
      */
     private $connected = false;
 
+    /**
+     * 是否启用压缩.
+     *
+     * @var bool
+     */
+    private $compressed = false;
+
     /**
      * 初始化.
      *
@@ -57,6 +64,7 @@ public function init($httpHandler, $request, $response)
         $this->request = $request;
         $this->response = $response;
         $this->handler = $request->getAttribute(Attributes::PRIVATE_CONNECTION);
+        $this->compressed = $request->getAttribute(Attributes::WEBSOCKET_COMPRESSION);
         $this->connected = true;
     }
 
@@ -120,10 +128,10 @@ public function close()
      *
      * @return bool
      */
-    public function send($data)
+    public function send($data, int $opcode = Opcode::TEXT)
     {
         $handler = $this->handler;
-        $result = $handler->push($data);
+        $result = $handler->push($data, $opcode, \SWOOLE_WEBSOCKET_FLAG_FIN | ($this->compressed ? \SWOOLE_WEBSOCKET_FLAG_COMPRESS : 0));
         if (!$result)
         {
             $errCode = $handler->errCode;
@@ -190,4 +198,12 @@ public function getClient()
     {
         return $this->handler;
     }
+
+    /**
+     * 是否启用压缩.
+     */
+    public function isCompressed(): bool
+    {
+        return $this->compressed;
+    }
 }