diff --git a/III. Using Spring Boot/18. Using the @SpringBootApplication annotation.md b/III. Using Spring Boot/18. Using the @SpringBootApplication annotation.md
index e69de29..f02dc35 100644
--- a/III. Using Spring Boot/18. Using the @SpringBootApplication annotation.md	
+++ b/III. Using Spring Boot/18. Using the @SpringBootApplication annotation.md	
@@ -0,0 +1,20 @@
+### 18. 使用@SpringBootApplication注解
+
+很多Spring Boot开发者总是使用`@Configuration`，`@EnableAutoConfiguration`和`@ComponentScan`注解他们的main类。由于这些注解被如此频繁地一块使用（特别是你遵循以上[最佳实践](http://docs.spring.io/spring-boot/docs/current-SNAPSHOT/reference/htmlsingle/#using-boot-structuring-your-code)时），Spring Boot提供一个方便的`@SpringBootApplication`选择。
+
+该`@SpringBootApplication`注解等价于以默认属性使用`@Configuration`，`@EnableAutoConfiguration`和`@ComponentScan`。
+```java
+package com.example.myproject;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication // same as @Configuration @EnableAutoConfiguration @ComponentScan
+public class Application {
+
+    public static void main(String[] args) {
+        SpringApplication.run(Application.class, args);
+    }
+
+}
+```