diff --git a/types/express-wechat-access/express-wechat-access-tests.ts b/types/express-wechat-access/express-wechat-access-tests.ts
new file mode 100644
index 0000000000..60cc5d9d88
--- /dev/null
+++ b/types/express-wechat-access/express-wechat-access-tests.ts
@@ -0,0 +1,18 @@
+import express = require('express');
+import * as weAccessMiddleware from 'express-wechat-access';
+
+const app: express.Application = express();
+
+const options: weAccessMiddleware.WeAccessMidOption = {
+    appId: 'xxxxx',
+    appSecret: 'xxxxx'
+};
+
+app.use(
+    weAccessMiddleware(
+        options,
+        e => {
+            console.error(e);
+        }
+    )
+);
diff --git a/types/express-wechat-access/index.d.ts b/types/express-wechat-access/index.d.ts
new file mode 100644
index 0000000000..fb0d58701d
--- /dev/null
+++ b/types/express-wechat-access/index.d.ts
@@ -0,0 +1,38 @@
+// Type definitions for express-wechat-access 1.1
+// Project: https://github.com/simmons8616/express-wechat-access
+// Definitions by: Simmons Zhang <https://github.com/simmons8616>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+// TypeScript Version: 2.2
+
+/// <reference types="node" />
+
+import { Response, NextFunction } from 'express';
+import * as http from 'http';
+import { EventEmitter } from 'events';
+
+type WeMiddleware = (req: any, res: Response | http.ServerResponse, next: NextFunction) => any;
+
+declare function weAccessMiddleware(
+    options: {
+        accessTokenUrl?: string;
+        ticketUrl?: string;
+        appId: string;
+        appSecret: string;
+        https?: boolean;
+    },
+    errorHandler?: (e: any) => any
+): WeMiddleware;
+
+declare namespace weAccessMiddleware {
+    interface WeAccessMidOption {
+        accessTokenUrl?: string;
+        ticketUrl?: string;
+        appId: string;
+        appSecret: string;
+        https?: boolean;
+    }
+
+    interface WeAccessMiddleware extends WeMiddleware, EventEmitter, Function {}
+}
+
+export = weAccessMiddleware;
diff --git a/types/express-wechat-access/tsconfig.json b/types/express-wechat-access/tsconfig.json
new file mode 100644
index 0000000000..e24d740f2c
--- /dev/null
+++ b/types/express-wechat-access/tsconfig.json
@@ -0,0 +1,23 @@
+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": [
+            "es6"
+        ],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictFunctionTypes": true,
+        "strictNullChecks": true,
+        "baseUrl": "../",
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": [
+        "index.d.ts",
+        "express-wechat-access-tests.ts"
+    ]
+}
diff --git a/types/express-wechat-access/tslint.json b/types/express-wechat-access/tslint.json
new file mode 100644
index 0000000000..3db14f85ea
--- /dev/null
+++ b/types/express-wechat-access/tslint.json
@@ -0,0 +1 @@
+{ "extends": "dtslint/dt.json" }