diff --git a/package.json b/package.json
index 8fe8abd..34243ec 100644
--- a/package.json
+++ b/package.json
@@ -3,6 +3,8 @@
   "version": "1.0.1",
   "description": "基于nodejs worker_threads的线程池。耗时操作或nodejs没有提供异步模式的api（例如解密、同步的文件api）都可以在线程池中执行，业务代码只需要返回一个Promise或async函数给线程池库，至于业务逻辑做什么操作，其实都可以，比如setTimeout，异步操作，async await等",
   "main": "src/index.js",
+  "module": "src/index.js",
+  "types": "src/index.d.ts",
   "directories": {
     "test": "test"
   },
diff --git a/src/config.d.ts b/src/config.d.ts
new file mode 100644
index 0000000..8a61a99
--- /dev/null
+++ b/src/config.d.ts
@@ -0,0 +1,4 @@
+export declare const MAX_THREADS = 50;
+export declare const MAX_WORK: number;
+export declare const CORE_THREADS = 10;
+export declare const MAX_IDLE_TIME: number;
diff --git a/src/constants.d.ts b/src/constants.d.ts
new file mode 100644
index 0000000..db15548
--- /dev/null
+++ b/src/constants.d.ts
@@ -0,0 +1,18 @@
+export declare const DISCARD_POLICY: {
+    ABORT: number;
+    CALLER_RUN: number;
+    OLDEST_DISCARD: number;
+    DISCARD: number;
+    NOT_DISCARD: number;
+};
+export declare const THREAD_STATE: {
+    IDLE: number;
+    BUSY: number;
+    DEAD: number;
+};
+export declare const WORK_STATE: {
+    PENDDING: number;
+    RUNNING: number;
+    END: number;
+    CANCELED: number;
+};
diff --git a/src/index.d.ts b/src/index.d.ts
new file mode 100644
index 0000000..dcc2bbb
--- /dev/null
+++ b/src/index.d.ts
@@ -0,0 +1,4 @@
+export * as constants from './constants';
+export * as config from './config';
+export * as threadPool from './threadPool';
+export { defaultCpuThreadPool, defaultFixedThreadPool, defaultSingleThreadPool, defaultThreadPool, ThreadPool, CPUThreadPool, FixedThreadPool, SingleThreadPool } from './threadPool';
diff --git a/src/index.js b/src/index.js
index 9d65afd..3a87e3f 100644
--- a/src/index.js
+++ b/src/index.js
@@ -1,5 +1,8 @@
+const threadPool = require('./threadPool');
+
 module.exports = {
     constants: require('./constants'),
     config: require('./config'),
-    threadPool: require('./threadPool'),
+    threadPool,
+    ...threadPool
 };
\ No newline at end of file
diff --git a/src/threadPool.d.ts b/src/threadPool.d.ts
new file mode 100644
index 0000000..b81bd0c
--- /dev/null
+++ b/src/threadPool.d.ts
@@ -0,0 +1,84 @@
+/// <reference types="node" />
+import { Worker } from 'worker_threads';
+import { EventEmitter } from 'events';
+import { Work } from './work';
+interface IPropsOptions {
+    workId: number;
+}
+declare class UserWork extends EventEmitter {
+    workId: number;
+    timer: any;
+    state: number;
+    terminate?: () => void;
+    constructor({ workId }: IPropsOptions);
+    setTimeout(timeout: number): void;
+    clearTimeout(): void;
+    cancel(): boolean;
+    setState(state: number): void;
+}
+interface IThreadOptions {
+    worker: Worker;
+}
+declare class Thread {
+    worker: Worker;
+    threadId: number;
+    state: number;
+    lastWorkTime: number;
+    constructor({ worker }: IThreadOptions);
+    setState(state: number): void;
+    setLastWorkTime(time: number): void;
+}
+interface IThreadPoolOptions {
+    coreThreads?: number;
+    maxThreads?: number;
+    discardPolicy?: number;
+    preCreate?: boolean;
+    timeout?: number;
+    maxIdleTime?: number;
+    maxWork?: number;
+    expansion?: boolean;
+}
+export declare class ThreadPool {
+    options: IThreadPoolOptions;
+    workerQueue: Thread[];
+    coreThreads: number;
+    maxThreads: number;
+    discardPolicy: number;
+    preCreate: boolean;
+    maxIdleTime: number;
+    workPool: {
+        [props: number]: UserWork;
+    };
+    workId: number;
+    queue: Work[];
+    totalWork: number;
+    maxWork: number;
+    timeout: number;
+    constructor(options?: IThreadPoolOptions);
+    pollIdle(): void;
+    preCreateThreads(): void;
+    newThread(): Thread;
+    selectThead(): Thread;
+    generateWorkId(): number;
+    submit(filename: string, options?: {
+        [props: string]: any;
+    }): Promise<UserWork>;
+    submitWorkToThread(thread: Thread, work: Work): void;
+    addWork(userWork: UserWork): void;
+    endWork(userWork: UserWork): void;
+    cancelWork(userWork: UserWork): void;
+}
+export declare class CPUThreadPool extends ThreadPool {
+    constructor(options?: IThreadPoolOptions);
+}
+export declare class SingleThreadPool extends ThreadPool {
+    constructor(options?: IThreadPoolOptions);
+}
+export declare class FixedThreadPool extends ThreadPool {
+    constructor(options?: IThreadPoolOptions);
+}
+export declare const defaultThreadPool: ThreadPool;
+export declare const defaultCpuThreadPool: CPUThreadPool;
+export declare const defaultFixedThreadPool: FixedThreadPool;
+export declare const defaultSingleThreadPool: SingleThreadPool;
+export {};
diff --git a/src/utils.d.ts b/src/utils.d.ts
new file mode 100644
index 0000000..05d078d
--- /dev/null
+++ b/src/utils.d.ts
@@ -0,0 +1,3 @@
+export declare function isFunction(func: unknown): boolean;
+export declare function isJSFile(file: string): boolean;
+export declare function isMJSFile(file: string): boolean;
diff --git a/src/work.d.ts b/src/work.d.ts
new file mode 100644
index 0000000..6b6cb3c
--- /dev/null
+++ b/src/work.d.ts
@@ -0,0 +1,16 @@
+interface IPropsOption {
+    workId: number;
+    filename: string;
+    options: {
+        [props: string]: any;
+    };
+}
+export declare class Work {
+    workId: number;
+    filename: string;
+    data: any;
+    error: any;
+    options: any;
+    constructor({ workId, filename, options }: IPropsOption);
+}
+export {};
diff --git a/src/worker.d.ts b/src/worker.d.ts
new file mode 100644
index 0000000..cb0ff5c
--- /dev/null
+++ b/src/worker.d.ts
@@ -0,0 +1 @@
+export {};