diff --git a/da.py b/da.py
new file mode 100644
index 0000000..2ff5331
--- /dev/null
+++ b/da.py
@@ -0,0 +1,40 @@
+from asyncio import sleep
+from pagermaid import log
+from pagermaid.listener import listener
+
+@listener(is_plugin=True, outgoing=True, command="da",
+          description="以此命令删除所有消息。（非群组管理员只删除自己的消息）",
+          parameters="<text>")
+async def prune(context):
+    if len(context.parameter) > 2 or len(context.parameter) == 0:
+        await context.edit("\n呜呜呜，请执行 `-da true` 来删除所有消息。")
+        return
+    if context.parameter[0] != "true":
+        await context.edit("\n呜呜呜，请执行 `-da true` 来删除所有消息。")
+        return
+    await context.edit('正在删除所有消息 . . .')
+    input_chat = await context.get_input_chat()
+    messages = []
+    count = 0
+    async for message in context.client.iter_messages(input_chat, min_id=1):
+        messages.append(message)
+        count += 1
+        messages.append(1)
+        if len(messages) == 100:
+            await context.client.delete_messages(input_chat, messages)
+            messages = []
+
+    if messages:
+        await context.client.delete_messages(input_chat, messages)
+    await log(f"批量删除了 {str(count)} 条消息。")
+    notification = await send_prune_notify(context, count)
+    await sleep(.5)
+    await notification.delete()
+
+async def send_prune_notify(context, count):
+    return await context.client.send_message(
+        context.chat_id,
+        "批量删除了 "
+        + str(count)
+        + " 条消息。"
+    )
diff --git a/list.json b/list.json
index 9da1fa8..828adf4 100644
--- a/list.json
+++ b/list.json
@@ -239,6 +239,16 @@
             "supported": true,
             "des-short": "多网站随机获取ACG图",
             "des": "从几个不同的图库中随机获取二刺螈（bushi）ACG图片，基本都是手机尺寸的图。命令：acgm。"
+        },
+        {
+            "name": "da",
+            "version": "1.0",
+            "section": "chat",
+            "maintainer": "yxkumad",
+            "size": "1.6 kb",
+            "supported": true,
+            "des-short": "删除所有信息",
+            "des": "删除所有信息（非群组管理员只删除自己的消息），需要二次确定（-da true）。命令：da"
         }
     ]
 }