diff --git a/assets/demo/README.md b/assets/demo/README.md
new file mode 100644
index 000000000..e25af6c6a
--- /dev/null
+++ b/assets/demo/README.md
@@ -0,0 +1,14 @@
+## :star2: Why OpenIM
+
+**🔍 Function screenshot display**
+
+<div align="center">
+
+
+|             multiple message              |               Efficient meetings                |
+| :---------------------------------------: | :---------------------------------------------: |
+| ![multiple-message](./multiple-message.png) | ![efficient-meetings](./efficient-meetings.png) |
+|      **One-to-one and group chats**       |     **Special features - Custom messages**      |
+|      ![group-chat](./group-chat.png)      |   ![special-function](./special-function.md)    |
+
+</div>