diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..d2db26d
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2026 flashcatcloud
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/README.md b/README.md
index d0f3b18..ff53286 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,8 @@
 
 English | [中文](README_zh.md)
 
+[![License](https://img.shields.io/github/license/flashcatcloud/flashduty-cli?style=flat-square&color=24bfa5&label=License)](LICENSE)
+
 A command-line interface for the [Flashduty](https://flashcat.cloud) platform. Manage incidents, on-call schedules, status pages, and more from your terminal.
 
 ## Installation
diff --git a/README_zh.md b/README_zh.md
index 828a925..8783a1a 100644
--- a/README_zh.md
+++ b/README_zh.md
@@ -2,6 +2,8 @@
 
 [English](README.md) | 中文
 
+[![License](https://img.shields.io/github/license/flashcatcloud/flashduty-cli?style=flat-square&color=24bfa5&label=License)](LICENSE)
+
 [Flashduty](https://flashcat.cloud) 平台的命令行工具。在终端中管理故障、值班、状态页等。
 
 ## 安装