diff --git a/docs/smartcity/1_Introduction.md b/docs/smartcity/1_Introduction.md
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--- a/docs/smartcity/1_Introduction.md
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@@ -2,7 +2,20 @@
## Introduction
Smarthon Smart City IoT Starter kit is designed to introduce Internet of things (IoT). With basic knowledge of computing knowledge and electronics provided in the kit, you can be a city creator and build a unique IoT system in the city. Based on Smarthon IoT board, which is compatible with multiple sensors and actuators, you can design city features; for example: using sensors to detect traffic status and upload city information to the internet.
-![auto_fit](images/1_Intro/smartcity.png)
+
+![auto_fit](images/1_Intro/box.png)
+ + +## Application Scene +
+ +![auto_fit](images/1_Intro/case01.png) + +
+ +![auto_fit](images/1_Intro/case02.png) +
+For more practical case, please refer to the materials.
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