diff --git a/README.md b/README.md
index 9c3d84e..6423a2a 100644
--- a/README.md
+++ b/README.md
@@ -20,14 +20,14 @@ xtool 是一个小小的 Java 工具集，遵循简单、可靠的原则，不
 <dependency>
     <groupId>com.igeeksky.xtool</groupId>
     <artifactId>xtool</artifactId>
-    <version>1.1.1</version>
+    <version>1.1.2</version>
 </dependency>
 ```
 
 ### 2.2.Gradle
 
 ```groovy
-implementation group: 'com.igeeksky.xtool', name: 'xtool', version: '1.1.1'
+implementation group: 'com.igeeksky.xtool', name: 'xtool', version: '1.1.2'
 ```
 
 ### 2.3.编译安装
@@ -80,6 +80,10 @@ mvn clean install
 
 ## 4. 更新日志
 
+### 1.1.2
+
+1. add Shutdown API
+
 ### 1.1.1
 
 1. add RingBuffer
diff --git a/docs/Reference.md b/docs/Reference.md
index 5ecaab0..f2e35b9 100644
--- a/docs/Reference.md
+++ b/docs/Reference.md
@@ -1,6 +1,6 @@
 ## xtool 参考文档
 
-Author: [Patrick.Lau](mailto:patricklauxx@gmail.com)        Version: 1.1.1
+Author: [Patrick.Lau](mailto:patricklauxx@gmail.com)        Version: 1.1.2
 
 [![License](https://img.shields.io/badge/license-Apache%202-4EB1BA.svg)](https://www.apache.org/licenses/LICENSE-2.0.html)  [![Release](https://img.shields.io/github/v/release/patricklaux/xtool)](https://github.com/patricklaux/xtool/releases)  [![Maven Central](https://img.shields.io/maven-central/v/com.igeeksky.xtool/xtool.svg?label=Maven%20Central)](https://search.maven.org/search?q=g:%22com.igeeksky.xtool%22%20AND%20a:%22xtool%22)  [![codecov](https://codecov.io/gh/patricklaux/xtool/branch/main/graph/badge.svg?token=VJ87A1IAVH)](https://codecov.io/gh/patricklaux/xtool)  [![Last commit](https://img.shields.io/github/last-commit/patricklaux/xtool)](https://github.com/patricklaux/xtool/commits)  [![Join the chat at https://gitter.im/igeeksky/xtool](https://badges.gitter.im/igeeksky/xtool.svg)](https://gitter.im/igeeksky/xtool?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
 
@@ -26,14 +26,14 @@ xtool 是一个小小的 Java 工具集，遵循简单、可靠的原则，不
 <dependency>
     <groupId>com.igeeksky.xtool</groupId>
     <artifactId>xtool</artifactId>
-    <version>1.1.1</version>
+    <version>1.1.2</version>
 </dependency>
 ```
 
 #### 1.2.2.Gradle
 
 ```groovy
-implementation group: 'com.igeeksky.xtool', name: 'xtool', version: '1.1.1'
+implementation group: 'com.igeeksky.xtool', name: 'xtool', version: '1.1.2'
 ```
 
 #### 1.2.3.编译安装
diff --git a/pom.xml b/pom.xml
index 62e53dd..d6ce969 100644
--- a/pom.xml
+++ b/pom.xml
@@ -6,7 +6,7 @@
 
     <groupId>com.igeeksky.xtool</groupId>
     <artifactId>xtool</artifactId>
-    <version>1.1.1</version>
+    <version>1.1.2</version>
     <name>xtool</name>
     <description>xtool is a very small set of Java tools.</description>
     <url>https://github.com/patricklaux/xtool</url>
diff --git a/src/main/java/com/igeeksky/xtool/core/Shutdown.java b/src/main/java/com/igeeksky/xtool/core/Shutdown.java
new file mode 100644
index 0000000..9e00f8c
--- /dev/null
+++ b/src/main/java/com/igeeksky/xtool/core/Shutdown.java
@@ -0,0 +1,46 @@
+package com.igeeksky.xtool.core;
+
+import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.TimeUnit;
+
+/**
+ * 优雅关停接口
+ * <p>
+ * 线程池对象及工厂类对象建议实现此接口。
+ *
+ * @author Patrick.Lau
+ * @since 1.1.2
+ */
+public interface Shutdown {
+
+    /**
+     * 关闭（根据配置参数或默认参数执行优雅关闭）
+     */
+    void shutdown();
+
+    /**
+     * 关闭（根据传入参数执行优雅关闭）
+     *
+     * @param quietPeriod 静默时间
+     * @param timeout     超时时间
+     * @param unit        时间单位
+     */
+    void shutdown(long quietPeriod, long timeout, TimeUnit unit);
+
+    /**
+     * 异步关闭（根据配置参数或默认参数执行优雅关闭）
+     *
+     * @return {@link CompletableFuture}
+     */
+    CompletableFuture<Void> shutdownAsync();
+
+    /**
+     * 异步关闭（根据传入参数执行优雅关闭）
+     *
+     * @param quietPeriod 静默时间
+     * @param unit        时间单位
+     * @return {@link CompletableFuture}
+     */
+    CompletableFuture<Void> shutdownAsync(long quietPeriod, long timeout, TimeUnit unit);
+
+}
\ No newline at end of file