diff --git a/index.d.ts b/index.d.ts
new file mode 100644
index 0000000..943cde3
--- /dev/null
+++ b/index.d.ts
@@ -0,0 +1,45 @@
+import { ServerRequest, ServerResponse } from 'http'
+
+export default class Response {
+  status: number
+
+  constructor(req: ServerRequest, res: ServerResponse)
+
+  get ended(): boolean
+
+  set charset(v: string)
+
+  get type(): string
+
+  set type(v: string)
+
+  set length(val: number)
+
+  set body(buf: Buffer | string)
+
+  set expires(time: number): void
+
+  error(msg: string, statusCode?: number): void
+
+  redirect(url: string, f?: boolean): void
+
+  location(url: string): void
+
+  render(data: string, statusCode?: number): void
+
+  sendfile(target: Buffer | string, filename?: string, expires?: number): void
+
+  load(file: string, type?: string, expires?: number): void
+
+  send(statusCode?: number, msg?: string | object, data?: any): void
+
+  get(key: string): string | number | string[]
+
+  set(key: string, val: string | string[]): this
+
+  delete(key: string): this
+
+  append(key: string, val: string): this
+
+  cookie(key: string, val: string | number, opts?: object): void
+}
diff --git a/package.json b/package.json
index d94996f..6a26059 100644
--- a/package.json
+++ b/package.json
@@ -1,9 +1,10 @@
 {
   "name": "@gm5/response",
-  "version": "2.1.1",
+  "version": "2.1.2",
   "type": "module",
   "description": "对Http的response进一步封装, 提供常用的API",
   "main": "index.js",
+  "types": "index.d.ts",
   "author": "yutent",
   "keywords": [
     "fivejs",