diff --git a/README.md b/README.md
index 065aa3b..80f1ef8 100644
--- a/README.md
+++ b/README.md
@@ -12,6 +12,10 @@
 <br>
 </div>
 
+<p align="center">
+  <img src="src/assets/og-image.png" alt="eSIM Tools - Giffgaff & Simyo eSIM 在线管理工具" width="600">
+</p>
+
 专为Giffgaff和Simyo用户设计的现代化eSIM管理工具集，支持完整的eSIM申请、激活和二维码生成流程。
 
 [:us: English Version](README_EN.md)
diff --git a/README_EN.md b/README_EN.md
index 452e505..f560928 100644
--- a/README_EN.md
+++ b/README_EN.md
@@ -12,6 +12,10 @@
 <br>
 </div>
 
+<p align="center">
+  <img src="src/assets/og-image.png" alt="eSIM Tools - Giffgaff & Simyo eSIM Online Management" width="600">
+</p>
+
 A modern eSIM management toolkit for Giffgaff and Simyo users, supporting complete eSIM application, activation, and QR code generation workflows.
 
 [:cn: 中文版本](README.md)