diff --git a/idna/DES.md b/idna/DES.md
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--- /dev/null
+++ b/idna/DES.md
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+国际化域名 (IDNA) 编码转换工具
+
+指令:
+- `,punyencode <待编码内容>` (编码至 Punycode)
+- `,punydecode <待解码内容>` (从 Punycode 解码)
diff --git a/idna/main.py b/idna/main.py
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--- /dev/null
+++ b/idna/main.py
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+# pyright: basic
+
+
+from pagermaid.enums import Message
+from pagermaid.listener import listener
+
+
+@listener(command="punyencode", description="编码至 Punycode", parameters="[待编码内容]")
+async def punyencode(message: Message) -> None:
+    if message.arguments:
+        try:
+            result = message.arguments.encode("idna").decode()
+        except Exception:
+            result = "呜呜呜 ~ 转换失败了，可能含有非法字符。"
+    else:
+        result = "请输入参数"
+    await message.edit(f"`{result}`")
+
+
+@listener(command="punydecode", description="从 Punycode 解码", parameters="[待解码内容]")
+async def punydecode(message: Message) -> None:
+    if message.arguments:
+        try:
+            result = message.arguments.encode().decode("idna")
+        except Exception:
+            result = "呜呜呜 ~ 转换失败了，可能含有非法字符。"
+    else:
+        result = "请输入参数"
+    await message.edit(f"`{result}`")