diff --git a/adapters/common/worker/cache-manager-proxy.js b/adapters/common/worker/cache-manager-proxy.js
index 2a02d207..d186d59b 100644
--- a/adapters/common/worker/cache-manager-proxy.js
+++ b/adapters/common/worker/cache-manager-proxy.js
@@ -111,19 +111,19 @@ var cacheManager = {
 
     init() {
         this._cacheDir = getUserDataPath() + '/' + this.cacheDir;
-        worker.cacheManager.init(null, ([cachedFiles]) => {
+        worker.cacheManager.init(([cachedFiles]) => {
             this.cachedFiles = new cc.AssetManager.Cache(cachedFiles);
         });
     },
 
     clearCache() {
-        worker.cacheManager.clearCache(null, () => {
+        worker.cacheManager.clearCache(() => {
             this.cachedFiles.clear();
         });
     },
 
     clearLRU() {
-        worker.cacheManager.clearLRU(null, ([deletedFiles]) => {
+        worker.cacheManager.clearLRU(([deletedFiles]) => {
             for (let i = 0, l = deletedFiles.length; i < l; i++) {
                 this.cachedFiles.remove(deletedFiles[i]);
             }
diff --git a/adapters/platforms/wechat/res/workers/audio-worker.js b/adapters/platforms/wechat/res/workers/audio-worker.js
index 5df876b5..4f3980a1 100644
--- a/adapters/platforms/wechat/res/workers/audio-worker.js
+++ b/adapters/platforms/wechat/res/workers/audio-worker.js
@@ -5,7 +5,7 @@ var audio_worker = {
     map: {},
     timer: null,
 
-    create(callback, id) {
+    create(id) {
         this.map[id] = {
             audio: worker.createInnerAudioContext({ useWebAudioImplement: true }),
             cache: {
@@ -20,7 +20,7 @@ var audio_worker = {
         }
     },
 
-    call(callback, id, type, arg) {
+    call(id, type, arg) {
         const audio = this.map[id].audio;
         switch (type) {
             case 0:
@@ -73,20 +73,20 @@ var audio_worker = {
         }
     },
 
-    on(callback, id, type) {
+    on(id, type) {
         const data = this.map[id];
         data.audio["on" + type]((data.callbacks[type] = data => {
             main.audioAdapter.onCallback(id, type, data);
         }));
     },
 
-    off(callback, id, type) {
+    off(id, type) {
         const data = this.map[id];
         data.audio["off" + type](data.callbacks[type]);
         delete data.callbacks[type];
     },
 
-    destroy(callback, id) {
+    destroy(id) {
         this.map[id].destroy();
         delete this.map[id];
     },
diff --git a/adapters/platforms/wechat/res/workers/cache-manager-worker.js b/adapters/platforms/wechat/res/workers/cache-manager-worker.js
index 05936748..16f23e99 100644
--- a/adapters/platforms/wechat/res/workers/cache-manager-worker.js
+++ b/adapters/platforms/wechat/res/workers/cache-manager-worker.js
@@ -88,12 +88,12 @@ var cacheManager_worker = {
     },
 
     download(
-        callback,
         url,
         options_reload,
         options_header,
         options_cacheEnabled,
         options___cacheBundleRoot__,
+        callback,
     ) {
         var result = this.transformUrl(url, options_reload);
         if (result.inLocal) {
@@ -109,17 +109,17 @@ var cacheManager_worker = {
                     return;
                 }
                 this.tempFiles[url] = path;
-                this.cacheFile(null, url, path, options_cacheEnabled, options___cacheBundleRoot__, true);
+                this.cacheFile(url, path, options_cacheEnabled, options___cacheBundleRoot__, true);
                 callback(null, path);
             });
         }
     },
 
     handleZip(
-        callback,
         url,
         options_header,
         options___cacheBundleRoot__,
+        callback,
     ) {
         let cachedUnzip = this.cachedFiles[url];
         if (cachedUnzip) {
@@ -138,7 +138,7 @@ var cacheManager_worker = {
         }
     },
 
-    getTemp(callback, url) {
+    getTemp(url, callback) {
         callback(this.tempFiles.has(url) ? this.tempFiles.get(url) : '');
     },
 
@@ -208,7 +208,7 @@ var cacheManager_worker = {
         checkNextPeriod = false;
     },
 
-    cacheFile(callback, id, srcUrl, cacheEnabled, cacheBundleRoot, isCopy) {
+    cacheFile(id, srcUrl, cacheEnabled, cacheBundleRoot, isCopy, callback) {
         cacheEnabled = cacheEnabled != null ? cacheEnabled : this.cacheEnabled;
         if (!cacheEnabled || this.cacheQueue[id] || this.cachedFiles[id]) {
             if (callback) callback(null);
@@ -293,7 +293,7 @@ var cacheManager_worker = {
         });
     },
 
-    removeCache(callback, url) {
+    removeCache(url, callback) {
         if (this.cachedFiles[url]) {
             var self = this;
             var path = this.cachedFiles[url].url;
diff --git a/adapters/platforms/wechat/res/workers/index.js b/adapters/platforms/wechat/res/workers/index.js
index 190af0ef..fec2f52f 100644
--- a/adapters/platforms/wechat/res/workers/index.js
+++ b/adapters/platforms/wechat/res/workers/index.js
@@ -1,6 +1,14 @@
 require("./macro.js");
 const { init } = require("./ipc-worker.js");
+const { CC_CUSTOM_WORKER } = globalThis;
 
 init(() => {
     require("./handlers.js");
+    if (CC_CUSTOM_WORKER) {
+        try {
+            require("./custom/index.js");
+        } catch (error) {
+            console.error("worker init custom extension error:", error);
+        }
+    }
 });
diff --git a/adapters/platforms/wechat/res/workers/ipc-worker.js b/adapters/platforms/wechat/res/workers/ipc-worker.js
index 9271c2c3..9cf08795 100644
--- a/adapters/platforms/wechat/res/workers/ipc-worker.js
+++ b/adapters/platforms/wechat/res/workers/ipc-worker.js
@@ -7,10 +7,10 @@
 //      1.在 worker 端调用 registerHandler(name, obj) 注册处理对象。
 //      2.所有非函数属性会生成 `get_xxx()`、`set_xxx(v)`、`write_xxx(v)` 三个函数，
 //        其中，`write_` 函数会在设置完毕后回调到主线程。
-//      3.所有函数属性请确保第一个参数是 callback，用于回调到主线程，
+//      3.在函数被调用时，会在最后一个参数传入 callback，用于回调结果到主线程，
 //        用法是 callback(...args)。
 //      
-//      注册好函数后，在主线程通过 worker.name.key(args | null, (args)=>{}) 调用。
+//      注册好函数后，在主线程通过 worker.name.key(args, args => {}) 或 worker.name.key(args => {}) 调用。
 //      注意在主线程调用时传入和返回的都是参数数组。
 //
 // - 从 Worker 调用 主线程：
@@ -19,9 +19,9 @@
 //      1.在 main 端调用 registerHandler(name, obj) 注册处理对象。
 //      2.所有非函数属性会生成 `get_xxx()`、`set_xxx(v)`、`write_xxx(v)` 三个函数，
 //        其中，`write_` 函数会在设置完毕后回调到 Worker。
-//      3.所有函数属性请确保参数是 [args, cmdId, callback]，用于回调到 Worker，
+//      3.所有函数属性请确保参数是 [args, cmdId, callback]，callback 用于回调到 Worker，
 //        用法是 callback(cmdId, args)。
-//        注意在主线程回调时传入的是参数数组。
+//        注意主线程注册的函数、callback 传入的都是参数数组。
 //      
 //      注册好函数后，在 Worker 通过 main.name.key(...args, (...args)=>{}) 调用。
 //      最后一个参数如果是函数的话则会当作 callback 处理。
@@ -83,10 +83,10 @@ function registerHandler(name, obj) {
                 key,
                 func: (id, cmd, args) => {
                     obj[key](
+                        ...(args ? args : []),
                         (...args) => {
                             callbackToMain(id, cmd, args);
                         },
-                        ...(args ? args : []),
                     );
                 },
             };
@@ -232,5 +232,13 @@ const sendScheduler = {
 };
 
 const main = {};
+const ipcWorker = {
+    get inited() {
+        return _inited;  
+    },
+    main,
+    init,
+    registerHandler,
+};
 
-module.exports = { init, registerHandler, main };
+module.exports = ipcWorker;
diff --git a/adapters/platforms/wechat/res/workers/macro.js b/adapters/platforms/wechat/res/workers/macro.js
index d54c6e0b..45b73fad 100644
--- a/adapters/platforms/wechat/res/workers/macro.js
+++ b/adapters/platforms/wechat/res/workers/macro.js
@@ -1,9 +1,12 @@
-// 是否启用 Worker 调度模式，这会减少通信次数（必须一致）
+// 是否启用 Worker 调度模式，这会减少通信次数
 globalThis.CC_WORKER_SCHEDULER = true;
 
 // 是否启用 Worker 调试模式
 globalThis.CC_WORKER_DEBUG = false;
 
+// 是否启用自定义 Worker
+globalThis.CC_CUSTOM_WORKER = false;
+
 // --- 以下从主线程同步值 ---
 
 // 是否启用 Worker 使用同步版本的文件系统 API
diff --git a/adapters/platforms/wechat/worker/ipc-main.js b/adapters/platforms/wechat/worker/ipc-main.js
index 872fbb85..9845eb62 100644
--- a/adapters/platforms/wechat/worker/ipc-main.js
+++ b/adapters/platforms/wechat/worker/ipc-main.js
@@ -121,7 +121,11 @@ const ipcMain = {
                 worker[name] = {};
             }
             worker[name][key] = (args, callback) => {
-                this.callToWorker(cmd, args, callback);
+                if (typeof args === "function") {
+                    this.callToWorker(cmd, null, args);
+                } else {
+                    this.callToWorker(cmd, args, callback);
+                }
             };
         }
 
diff --git a/adapters/platforms/wechat/worker/macro.js b/adapters/platforms/wechat/worker/macro.js
index 73137890..2b882616 100644
--- a/adapters/platforms/wechat/worker/macro.js
+++ b/adapters/platforms/wechat/worker/macro.js
@@ -28,9 +28,14 @@ if (!("CC_WORKER_AUDIO_SYSTEM_SYNC_INTERVAL" in globalThis)) {
     globalThis.CC_WORKER_AUDIO_SYSTEM_SYNC_INTERVAL = 500;
 }
 
+// 是否启用自定义 Worker
+if (!("CC_CUSTOM_WORKER" in globalThis)) {
+    globalThis.CC_CUSTOM_WORKER = false;
+}
+
 // 是否启用 Worker
 if (!("CC_USE_WORKER" in globalThis)) {
-    globalThis.CC_USE_WORKER = (CC_WORKER_ASSET_PIPELINE || CC_WORKER_AUDIO_SYSTEM) && hasWorker && !isSubContext;
+    globalThis.CC_USE_WORKER = (CC_WORKER_ASSET_PIPELINE || CC_WORKER_AUDIO_SYSTEM || CC_CUSTOM_WORKER) && hasWorker && !isSubContext;
 }
 
 // 是否启用 Worker 调试模式
@@ -38,7 +43,7 @@ if (!("CC_WORKER_DEBUG" in globalThis)) {
     globalThis.CC_WORKER_DEBUG = false;
 }
 
-// 是否启用 Worker 调度模式，这也许能减少通信次数带来的性能消耗（必须一致）
+// 是否启用 Worker 调度模式，这也许能减少通信次数带来的性能消耗
 globalThis.CC_WORKER_SCHEDULER = true;
 
 // 是否启用 Worker 使用同步版本的文件系统 API
diff --git a/creator-sp.d.ts b/creator-sp.d.ts
index bc5f6bce..64c75f66 100644
--- a/creator-sp.d.ts
+++ b/creator-sp.d.ts
@@ -935,3 +935,54 @@ declare module sp {
 
 }
 
+/**
+ * 访问 Worker 的入口
+ */
+declare const worker: any;
+
+declare module ipcMain {
+    /**
+     * 注册 Worker 可以访问的入口
+     */
+    export function registerHandler(name: string, handler: object): Promise<void>;
+}
+
+/**
+ * 是否启用 Worker 驱动资源管线
+ */
+declare var CC_WORKER_ASSET_PIPELINE: boolean;
+
+/**
+ * 是否启用 Worker 驱动音频系统
+ */
+declare var CC_WORKER_AUDIO_SYSTEM: boolean;
+
+/**
+ * Worker 音频系统同步音频属性的间隔时间（单位：毫秒）
+ */
+declare var CC_WORKER_AUDIO_SYSTEM_SYNC_INTERVAL: number;
+
+/**
+ * 是否启用自定义 Worker
+ */
+declare var CC_CUSTOM_WORKER: boolean;
+
+/**
+ * 是否启用 Worker 调试模式
+ */
+declare var CC_WORKER_DEBUG: boolean;
+
+/**
+ * 是否启用 Worker 使用同步版本的文件系统 API
+ */
+declare var CC_WORKER_FS_SYNC: boolean;
+
+/**
+ * 是否启用 Worker 子包
+ */
+declare var CC_WORKER_SUB_PACKAGE: boolean;
+
+/**
+ * 是否启用 Worker
+ */
+declare var CC_USE_WORKER: boolean;