diff --git a/README.md b/README.md
index 1d10c49..ccf11db 100644
--- a/README.md
+++ b/README.md
@@ -18,6 +18,14 @@
 
 Web-based Modbus relay control system for managing 8-channel relay modules over TCP.
 
+<div align="center">
+  <figure>
+    <img src="./assets/screenshot.png" alt="Screenshot of STA" width="800" />
+    <figcaption>Screenshot of STA</figcaption>
+  </figure>
+</div>
+
+
 ## Overview
 
 STA will provide a modern web interface for controlling Modbus-compatible relay devices, eliminating the need for specialized industrial software. The goal is to enable browser-based relay control with real-time status updates.
diff --git a/assets/screenshot.png b/assets/screenshot.png
new file mode 100644
index 0000000..8393a6c
Binary files /dev/null and b/assets/screenshot.png differ