diff --git a/src/main/java/com/aliyun/tea/okhttp/ClientHelper.java b/src/main/java/com/aliyun/tea/okhttp/ClientHelper.java
index 59d6ee9..e633cb1 100644
--- a/src/main/java/com/aliyun/tea/okhttp/ClientHelper.java
+++ b/src/main/java/com/aliyun/tea/okhttp/ClientHelper.java
@@ -20,7 +20,7 @@ public static OkHttpClient getOkHttpClient(String host, int port, Map<String, Ob
 
     private static OkHttpClient creatClient(Map<String, Object> map) {
         OkHttpClientBuilder builder = new OkHttpClientBuilder();
-        builder = builder.protocols(map).connectTimeout(map).readTimeout(map).connectionPool(map).certificate(map).proxy(map).proxyAuthenticator(map);
+        builder = builder.protocols(map).connectTimeout(map).readTimeout(map).callTimeout(map).connectionPool(map).certificate(map).proxy(map).proxyAuthenticator(map);
         return builder.buildOkHttpClient();
     }
 
@@ -39,6 +39,9 @@ private static String getClientKey(String host, int port, Map<String, Object> ma
                 (map.containsKey("socks5Proxy") && null != map.get("socks5Proxy") ? ":" + map.get("socks5Proxy") : "") +
                 (map.containsKey("connectTimeout") && null != map.get("connectTimeout") ? ":" + map.get("connectTimeout") : "") +
                 (map.containsKey("readTimeout") && null != map.get("readTimeout") ? ":" + map.get("readTimeout") : "") +
+                (map.containsKey("callTimeout") && null != map.get("callTimeout") ? ":" + map.get("callTimeout") : "") +
+                (map.containsKey("keepAliveDuration") && null != map.get("keepAliveDuration") ? ":" + map.get("keepAliveDuration") : "") +
+                (map.containsKey("maxIdleConns") && null != map.get("maxIdleConns") ? ":" + map.get("maxIdleConns") : "") +
                 (map.containsKey("ignoreSSL") && null != map.get("ignoreSSL") ? ":" + map.get("ignoreSSL") : "");
     }
 }
diff --git a/src/main/java/com/aliyun/tea/okhttp/OkHttpClientBuilder.java b/src/main/java/com/aliyun/tea/okhttp/OkHttpClientBuilder.java
index 22fcf02..130e069 100644
--- a/src/main/java/com/aliyun/tea/okhttp/OkHttpClientBuilder.java
+++ b/src/main/java/com/aliyun/tea/okhttp/OkHttpClientBuilder.java
@@ -71,6 +71,14 @@ public OkHttpClientBuilder readTimeout(Map<String, Object> map) {
         return this;
     }
 
+    public OkHttpClientBuilder callTimeout(Map<String, Object> map) {
+        if (map.containsKey("callTimeout") && null != map.get("callTimeout")) {
+            long callTimeout = Long.parseLong(String.valueOf(map.get("callTimeout")));
+            this.builder.callTimeout(callTimeout, TimeUnit.MILLISECONDS);
+        }
+        return this;
+    }
+
     public OkHttpClientBuilder connectionPool(Map<String, Object> map) {
         Object maxIdleConns = map.get("maxIdleConns");
         int maxIdleConnections;
diff --git a/src/test/java/com/aliyun/tea/okhttp/ClientHelperTest.java b/src/test/java/com/aliyun/tea/okhttp/ClientHelperTest.java
index dfe0209..85e981b 100644
--- a/src/test/java/com/aliyun/tea/okhttp/ClientHelperTest.java
+++ b/src/test/java/com/aliyun/tea/okhttp/ClientHelperTest.java
@@ -45,6 +45,16 @@ public void getClientKeyTest() throws NoSuchMethodException, InvocationTargetExc
         map.put("ignoreSSL", false);
         str = (String) getClientKey.invoke(ClientHelper.class, "0:0:0:0:0:0:0:1", 0, map);
         Assert.assertEquals("0:0:0:0:0:0:0:1:0:http://127.0.0.1:80:https://127.0.0.1:80:socks5://user:password@127.0.0.1:1080:1000:2000:false", str);
+
+        // callTimeout 应参与组装 client 缓存 key，位于 readTimeout 之后、ignoreSSL 之前
+        map.put("callTimeout", 3000);
+        str = (String) getClientKey.invoke(ClientHelper.class, "0:0:0:0:0:0:0:1", 0, map);
+        Assert.assertEquals("0:0:0:0:0:0:0:1:0:http://127.0.0.1:80:https://127.0.0.1:80:socks5://user:password@127.0.0.1:1080:1000:2000:3000:false", str);
+
+        // callTimeout 为 null 时不参与 key 组装
+        map.put("callTimeout", null);
+        str = (String) getClientKey.invoke(ClientHelper.class, "0:0:0:0:0:0:0:1", 0, map);
+        Assert.assertEquals("0:0:0:0:0:0:0:1:0:http://127.0.0.1:80:https://127.0.0.1:80:socks5://user:password@127.0.0.1:1080:1000:2000:false", str);
     }
 
     @Test
diff --git a/src/test/java/com/aliyun/tea/okhttp/OkHttpClientBuilderTest.java b/src/test/java/com/aliyun/tea/okhttp/OkHttpClientBuilderTest.java
index 4bff8f5..f25afb7 100644
--- a/src/test/java/com/aliyun/tea/okhttp/OkHttpClientBuilderTest.java
+++ b/src/test/java/com/aliyun/tea/okhttp/OkHttpClientBuilderTest.java
@@ -32,6 +32,51 @@ public void timeOutTest() {
         Assert.assertEquals(888, client.readTimeoutMillis());
     }
 
+    @Test
+    public void callTimeoutTest() {
+        // 未设置 callTimeout 时，默认应为 0（不限制），且不影响 readTimeout 默认值
+        map.clear();
+        OkHttpClientBuilder clientBuilder = new OkHttpClientBuilder();
+        OkHttpClient client = clientBuilder.callTimeout(map).buildOkHttpClient();
+        Assert.assertEquals(0, client.callTimeoutMillis());
+        Assert.assertEquals(10000, client.readTimeoutMillis());
+
+        // 显式设置 callTimeout，应只作用于 callTimeout，readTimeout 保持默认
+        map.clear();
+        clientBuilder = new OkHttpClientBuilder();
+        map.put("callTimeout", 1500);
+        client = clientBuilder.callTimeout(map).buildOkHttpClient();
+        Assert.assertEquals(1500, client.callTimeoutMillis());
+        Assert.assertEquals(10000, client.readTimeoutMillis());
+
+        // callTimeout 为 null 时按未设置处理，默认为 0
+        map.clear();
+        clientBuilder = new OkHttpClientBuilder();
+        map.put("callTimeout", null);
+        client = clientBuilder.callTimeout(map).buildOkHttpClient();
+        Assert.assertEquals(0, client.callTimeoutMillis());
+
+        // callTimeout 与 readTimeout 互不干扰，分别独立生效
+        map.clear();
+        clientBuilder = new OkHttpClientBuilder();
+        map.put("callTimeout", 2000);
+        map.put("readTimeout", 888);
+        client = clientBuilder.readTimeout(map).callTimeout(map).buildOkHttpClient();
+        Assert.assertEquals(2000, client.callTimeoutMillis());
+        Assert.assertEquals(888, client.readTimeoutMillis());
+
+        // callTimeout 为非法字符串时抛出 NumberFormatException
+        map.clear();
+        final OkHttpClientBuilder badBuilder = new OkHttpClientBuilder();
+        map.put("callTimeout", "str");
+        try {
+            badBuilder.callTimeout(map);
+            Assert.fail();
+        } catch (NumberFormatException e) {
+            Assert.assertTrue(e.getMessage().contains("For input string: \"str\""));
+        }
+    }
+
     @Test
     public void connectionPoolTest() {
         map.clear();