diff --git a/README.md b/README.md
index 2e8d5d2..cbbe5f5 100644
--- a/README.md
+++ b/README.md
@@ -78,6 +78,7 @@
 
 
 ## 线程＆并发
+* [守护线程](src/cn/aofeng/demo/thread/DaemonThreadDemo.java)
 * [fork/join](src/cn/aofeng/demo/java/util/forkjoin/HelloForkJoin.java)
 * [Future](src/cn/aofeng/demo/java/util/future/HelloFuture.java)
 * [Future接口关系图](src/cn/aofeng/demo/java/util/future/Future.ucls)
diff --git a/src/cn/aofeng/demo/thread/DaemonThreadDemo.java b/src/cn/aofeng/demo/thread/DaemonThreadDemo.java
new file mode 100644
index 0000000..541d133
--- /dev/null
+++ b/src/cn/aofeng/demo/thread/DaemonThreadDemo.java
@@ -0,0 +1,45 @@
+/**
+ * 公司：阿里游戏
+ * 创建时间：2018年11月2日下午5:56:43
+ */
+package cn.aofeng.demo.thread;
+
+import java.util.Date;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * 守护线程DEMO。
+ * 
+ * @author <a href="mailto:nieyong.ny@alibaba-inc.com">聂勇</a>
+ */
+public class DaemonThreadDemo extends Thread {
+
+    private static Logger logger = LoggerFactory.getLogger(DaemonThreadDemo.class);
+    
+    @Override
+    public void run() {
+        while (true) {
+            System.out.println("守护线程运行, 时间:" + new Date());
+            try {
+                Thread.sleep(1000);
+            } catch (InterruptedException e) {
+                logger.error("守护线程运行出错", e);
+            }
+        }
+    }
+    
+    public static void main(String[] args) {
+        DaemonThreadDemo thread = new DaemonThreadDemo();
+        thread.setDaemon(true);
+        thread.start();
+        
+        try {
+            Thread.sleep(5000);
+        } catch (InterruptedException e) {
+            logger.error("主线程运行出错", e);
+        }
+    }
+
+}