diff --git a/packages/platform-common/module.json b/packages/platform-common/module.json
new file mode 100644
index 00000000..085be085
--- /dev/null
+++ b/packages/platform-common/module.json
@@ -0,0 +1,21 @@
+{
+  "id": "platform-common",
+  "name": "@esengine/platform-common",
+  "displayName": "Platform Common",
+  "description": "Common platform interfaces | 平台通用接口定义",
+  "version": "1.0.0",
+  "category": "Core",
+  "icon": "Layers",
+  "tags": ["platform", "common", "interface"],
+  "isCore": true,
+  "defaultEnabled": true,
+  "isEngineModule": true,
+  "canContainContent": false,
+  "platforms": ["web", "desktop", "mobile"],
+  "dependencies": [],
+  "exports": {
+    "other": ["WasmLibraryLoaderFactory", "IPlatformAdapter"]
+  },
+  "requiresWasm": false,
+  "outputPath": "dist/index.mjs"
+}
diff --git a/packages/platform-common/src/index.ts b/packages/platform-common/src/index.ts
index 7ecbd62d..ff570888 100644
--- a/packages/platform-common/src/index.ts
+++ b/packages/platform-common/src/index.ts
@@ -40,3 +40,50 @@ export type {
     // 系统信息
     SystemInfo
 } from './IPlatformSubsystems';
+
+// WASM 库加载器
+export {
+    PlatformType,
+    WasmLibraryLoaderFactory
+} from './wasm';
+
+export type {
+    WasmLibraryConfig,
+    PlatformInfo,
+    IWasmLibraryLoader,
+    IPlatformWasmLoader
+} from './wasm';
+
+// Polyfills
+export {
+    installTextDecoderPolyfill,
+    installTextEncoderPolyfill,
+    isTextDecoderAvailable,
+    isTextEncoderAvailable,
+    installAllPolyfills,
+    getRequiredPolyfills,
+    TextDecoderPolyfill,
+    TextEncoderPolyfill
+} from './polyfills';
+
+/**
+ * 检测是否在编辑器环境（Tauri 桌面应用）
+ * Detect if running in editor environment (Tauri desktop app)
+ */
+export function isEditorEnvironment(): boolean {
+    if (typeof window === 'undefined') {
+        return false;
+    }
+
+    // Tauri 桌面应用 | Tauri desktop app
+    if ('__TAURI__' in window || '__TAURI_INTERNALS__' in window) {
+        return true;
+    }
+
+    // 编辑器标记 | Editor marker
+    if ('__ESENGINE_EDITOR__' in window) {
+        return true;
+    }
+
+    return false;
+}
diff --git a/packages/platform-common/src/polyfills/TextDecoderPolyfill.ts b/packages/platform-common/src/polyfills/TextDecoderPolyfill.ts
new file mode 100644
index 00000000..ebee96d7
--- /dev/null
+++ b/packages/platform-common/src/polyfills/TextDecoderPolyfill.ts
@@ -0,0 +1,235 @@
+/**
+ * TextDecoder polyfill
+ *
+ * 用于不原生支持 TextDecoder 的平台（如微信小游戏 iOS 环境）
+ *
+ * 支持以下编码格式：
+ * - UTF-8（包含1-4字节字符、代理对）
+ * - ASCII
+ * - UTF-16LE
+ */
+class TextDecoderPolyfill {
+    /**
+     * 编码格式
+     */
+    readonly encoding: string;
+
+    /**
+     * 是否在遇到无效序列时抛出错误
+     */
+    readonly fatal: boolean = false;
+
+    /**
+     * 是否忽略 BOM（字节顺序标记）
+     */
+    readonly ignoreBOM: boolean = false;
+
+    /**
+     * 创建 TextDecoder 实例
+     *
+     * @param encoding - 编码格式，默认 'utf-8'
+     * @param options - 解码选项
+     */
+    constructor(encoding: string = 'utf-8', options?: TextDecoderOptions) {
+        this.encoding = encoding.toLowerCase().replace('-', '');
+        if (options?.fatal) {
+            this.fatal = options.fatal;
+        }
+        if (options?.ignoreBOM) {
+            this.ignoreBOM = options.ignoreBOM;
+        }
+    }
+
+    /**
+     * 将二进制数据解码为字符串
+     *
+     * @param input - 要解码的二进制数据
+     * @param options - 解码选项
+     * @returns 解码后的字符串
+     */
+    decode(input?: BufferSource | null, options?: TextDecodeOptions): string {
+        if (!input) return '';
+
+        const bytes = input instanceof Uint8Array
+            ? input
+            : input instanceof ArrayBuffer
+                ? new Uint8Array(input)
+                : new Uint8Array(input.buffer, input.byteOffset, input.byteLength);
+
+        if (this.encoding === 'utf8' || this.encoding === 'utf-8') {
+            return this.decodeUTF8(bytes);
+        }
+
+        if (this.encoding === 'ascii' || this.encoding === 'usascii') {
+            return this.decodeASCII(bytes);
+        }
+
+        if (this.encoding === 'utf16le' || this.encoding === 'utf-16le') {
+            return this.decodeUTF16LE(bytes);
+        }
+
+        // 降级：作为 ASCII 处理
+        return this.decodeASCII(bytes);
+    }
+
+    /**
+     * 解码 UTF-8 数据
+     *
+     * @param bytes - 字节数组
+     * @returns 解码后的字符串
+     */
+    private decodeUTF8(bytes: Uint8Array): string {
+        const result: string[] = [];
+        let i = 0;
+
+        // 跳过 BOM（如果存在且不忽略）
+        if (!this.ignoreBOM && bytes.length >= 3 &&
+            bytes[0] === 0xEF && bytes[1] === 0xBB && bytes[2] === 0xBF) {
+            i = 3;
+        }
+
+        while (i < bytes.length) {
+            const byte1 = bytes[i++];
+
+            if (byte1 < 0x80) {
+                // 1字节字符（ASCII: 0xxxxxxx）
+                result.push(String.fromCharCode(byte1));
+            } else if ((byte1 & 0xE0) === 0xC0) {
+                // 2字节字符（110xxxxx 10xxxxxx）
+                if (i >= bytes.length) {
+                    if (this.fatal) throw new TypeError('无效的 UTF-8 序列');
+                    result.push('\uFFFD');
+                    break;
+                }
+                const byte2 = bytes[i++];
+                if ((byte2 & 0xC0) !== 0x80) {
+                    if (this.fatal) throw new TypeError('无效的 UTF-8 序列');
+                    result.push('\uFFFD');
+                    i--;
+                    continue;
+                }
+                result.push(String.fromCharCode(
+                    ((byte1 & 0x1F) << 6) | (byte2 & 0x3F)
+                ));
+            } else if ((byte1 & 0xF0) === 0xE0) {
+                // 3字节字符（1110xxxx 10xxxxxx 10xxxxxx）
+                if (i + 1 >= bytes.length) {
+                    if (this.fatal) throw new TypeError('无效的 UTF-8 序列');
+                    result.push('\uFFFD');
+                    break;
+                }
+                const byte2 = bytes[i++];
+                const byte3 = bytes[i++];
+                if ((byte2 & 0xC0) !== 0x80 || (byte3 & 0xC0) !== 0x80) {
+                    if (this.fatal) throw new TypeError('无效的 UTF-8 序列');
+                    result.push('\uFFFD');
+                    i -= 2;
+                    continue;
+                }
+                result.push(String.fromCharCode(
+                    ((byte1 & 0x0F) << 12) | ((byte2 & 0x3F) << 6) | (byte3 & 0x3F)
+                ));
+            } else if ((byte1 & 0xF8) === 0xF0) {
+                // 4字节字符（11110xxx 10xxxxxx 10xxxxxx 10xxxxxx）
+                if (i + 2 >= bytes.length) {
+                    if (this.fatal) throw new TypeError('无效的 UTF-8 序列');
+                    result.push('\uFFFD');
+                    break;
+                }
+                const byte2 = bytes[i++];
+                const byte3 = bytes[i++];
+                const byte4 = bytes[i++];
+                if ((byte2 & 0xC0) !== 0x80 || (byte3 & 0xC0) !== 0x80 || (byte4 & 0xC0) !== 0x80) {
+                    if (this.fatal) throw new TypeError('无效的 UTF-8 序列');
+                    result.push('\uFFFD');
+                    i -= 3;
+                    continue;
+                }
+                // 计算码点并转换为代理对
+                const codePoint = ((byte1 & 0x07) << 18) | ((byte2 & 0x3F) << 12) |
+                    ((byte3 & 0x3F) << 6) | (byte4 & 0x3F);
+                if (codePoint > 0x10FFFF) {
+                    if (this.fatal) throw new TypeError('无效的 UTF-8 序列');
+                    result.push('\uFFFD');
+                    continue;
+                }
+                const surrogate = codePoint - 0x10000;
+                result.push(
+                    String.fromCharCode(0xD800 + (surrogate >> 10)),
+                    String.fromCharCode(0xDC00 + (surrogate & 0x3FF))
+                );
+            } else {
+                // 无效字节
+                if (this.fatal) throw new TypeError('无效的 UTF-8 序列');
+                result.push('\uFFFD');
+            }
+        }
+
+        return result.join('');
+    }
+
+    /**
+     * 解码 ASCII 数据
+     *
+     * @param bytes - 字节数组
+     * @returns 解码后的字符串
+     */
+    private decodeASCII(bytes: Uint8Array): string {
+        const result: string[] = [];
+        for (let i = 0; i < bytes.length; i++) {
+            result.push(String.fromCharCode(bytes[i] & 0x7F));
+        }
+        return result.join('');
+    }
+
+    /**
+     * 解码 UTF-16LE 数据
+     *
+     * @param bytes - 字节数组
+     * @returns 解码后的字符串
+     */
+    private decodeUTF16LE(bytes: Uint8Array): string {
+        const result: string[] = [];
+
+        // 跳过 BOM（如果存在）
+        let i = 0;
+        if (!this.ignoreBOM && bytes.length >= 2 &&
+            bytes[0] === 0xFF && bytes[1] === 0xFE) {
+            i = 2;
+        }
+
+        for (; i + 1 < bytes.length; i += 2) {
+            const codeUnit = bytes[i] | (bytes[i + 1] << 8);
+            result.push(String.fromCharCode(codeUnit));
+        }
+
+        return result.join('');
+    }
+}
+
+/**
+ * 安装 TextDecoder polyfill
+ *
+ * 如果当前环境不支持 TextDecoder，则安装 polyfill
+ *
+ * @returns 是否安装了 polyfill
+ */
+export function installTextDecoderPolyfill(): boolean {
+    if (typeof globalThis.TextDecoder === 'undefined') {
+        (globalThis as any).TextDecoder = TextDecoderPolyfill;
+        console.log('[Polyfill] TextDecoder 已安装');
+        return true;
+    }
+    return false;
+}
+
+/**
+ * 检查 TextDecoder 是否可用（原生或 polyfill）
+ *
+ * @returns 是否可用
+ */
+export function isTextDecoderAvailable(): boolean {
+    return typeof globalThis.TextDecoder !== 'undefined';
+}
+
+export { TextDecoderPolyfill };
diff --git a/packages/platform-common/src/polyfills/TextEncoderPolyfill.ts b/packages/platform-common/src/polyfills/TextEncoderPolyfill.ts
new file mode 100644
index 00000000..adeb9cdf
--- /dev/null
+++ b/packages/platform-common/src/polyfills/TextEncoderPolyfill.ts
@@ -0,0 +1,167 @@
+/**
+ * TextEncoder polyfill
+ *
+ * 用于不原生支持 TextEncoder 的平台（如微信小游戏 iOS 环境）
+ *
+ * 支持 UTF-8 编码，包含：
+ * - ASCII 字符（1字节输出）
+ * - 扩展 Unicode（2-4字节输出）
+ * - BMP 外字符的代理对处理
+ */
+class TextEncoderPolyfill {
+    /**
+     * 编码格式（始终为 'utf-8'）
+     */
+    readonly encoding: string = 'utf-8';
+
+    /**
+     * 将字符串编码为 UTF-8 字节数组
+     *
+     * @param input - 要编码的字符串
+     * @returns UTF-8 编码的字节数组
+     */
+    encode(input: string = ''): Uint8Array {
+        const bytes: number[] = [];
+
+        for (let i = 0; i < input.length; i++) {
+            let codePoint = input.charCodeAt(i);
+
+            // 处理代理对（BMP 外的字符）
+            if (codePoint >= 0xD800 && codePoint <= 0xDBFF) {
+                // 高代理项
+                if (i + 1 < input.length) {
+                    const next = input.charCodeAt(i + 1);
+                    if (next >= 0xDC00 && next <= 0xDFFF) {
+                        // 低代理项 - 组合成完整码点
+                        codePoint = 0x10000 + ((codePoint - 0xD800) << 10) + (next - 0xDC00);
+                        i++; // 跳过低代理项
+                    }
+                }
+            } else if (codePoint >= 0xDC00 && codePoint <= 0xDFFF) {
+                // 孤立的低代理项 - 替换为替换字符
+                codePoint = 0xFFFD;
+            }
+
+            if (codePoint < 0x80) {
+                // 1字节字符（ASCII）
+                bytes.push(codePoint);
+            } else if (codePoint < 0x800) {
+                // 2字节字符
+                bytes.push(0xC0 | (codePoint >> 6));
+                bytes.push(0x80 | (codePoint & 0x3F));
+            } else if (codePoint < 0x10000) {
+                // 3字节字符
+                bytes.push(0xE0 | (codePoint >> 12));
+                bytes.push(0x80 | ((codePoint >> 6) & 0x3F));
+                bytes.push(0x80 | (codePoint & 0x3F));
+            } else if (codePoint <= 0x10FFFF) {
+                // 4字节字符
+                bytes.push(0xF0 | (codePoint >> 18));
+                bytes.push(0x80 | ((codePoint >> 12) & 0x3F));
+                bytes.push(0x80 | ((codePoint >> 6) & 0x3F));
+                bytes.push(0x80 | (codePoint & 0x3F));
+            } else {
+                // 无效码点 - 使用替换字符
+                bytes.push(0xEF, 0xBF, 0xBD); // U+FFFD 的 UTF-8 编码
+            }
+        }
+
+        return new Uint8Array(bytes);
+    }
+
+    /**
+     * 将字符串编码到目标缓冲区
+     *
+     * 尽可能多地将源字符串编码到目标缓冲区中
+     *
+     * @param source - 要编码的字符串
+     * @param destination - 目标缓冲区
+     * @returns 包含已读取字符数和已写入字节数的对象
+     */
+    encodeInto(source: string, destination: Uint8Array): TextEncoderEncodeIntoResult {
+        let read = 0;
+        let written = 0;
+
+        for (let i = 0; i < source.length; i++) {
+            let codePoint = source.charCodeAt(i);
+            let bytesNeeded: number;
+
+            // 处理代理对
+            if (codePoint >= 0xD800 && codePoint <= 0xDBFF && i + 1 < source.length) {
+                const next = source.charCodeAt(i + 1);
+                if (next >= 0xDC00 && next <= 0xDFFF) {
+                    codePoint = 0x10000 + ((codePoint - 0xD800) << 10) + (next - 0xDC00);
+                }
+            }
+
+            // 计算所需字节数
+            if (codePoint < 0x80) {
+                bytesNeeded = 1;
+            } else if (codePoint < 0x800) {
+                bytesNeeded = 2;
+            } else if (codePoint < 0x10000) {
+                bytesNeeded = 3;
+            } else {
+                bytesNeeded = 4;
+            }
+
+            // 检查是否有足够空间
+            if (written + bytesNeeded > destination.length) {
+                break;
+            }
+
+            // 写入字节
+            if (codePoint < 0x80) {
+                destination[written++] = codePoint;
+            } else if (codePoint < 0x800) {
+                destination[written++] = 0xC0 | (codePoint >> 6);
+                destination[written++] = 0x80 | (codePoint & 0x3F);
+            } else if (codePoint < 0x10000) {
+                destination[written++] = 0xE0 | (codePoint >> 12);
+                destination[written++] = 0x80 | ((codePoint >> 6) & 0x3F);
+                destination[written++] = 0x80 | (codePoint & 0x3F);
+            } else {
+                destination[written++] = 0xF0 | (codePoint >> 18);
+                destination[written++] = 0x80 | ((codePoint >> 12) & 0x3F);
+                destination[written++] = 0x80 | ((codePoint >> 6) & 0x3F);
+                destination[written++] = 0x80 | (codePoint & 0x3F);
+            }
+
+            read++;
+            // 如果处理了代理对，跳过低代理项
+            if (codePoint >= 0x10000) {
+                read++;
+                i++;
+            }
+        }
+
+        return { read, written };
+    }
+}
+
+/**
+ * 安装 TextEncoder polyfill
+ *
+ * 如果当前环境不支持 TextEncoder，则安装 polyfill
+ *
+ * @returns 是否安装了 polyfill
+ */
+export function installTextEncoderPolyfill(): boolean {
+    if (typeof globalThis.TextEncoder === 'undefined') {
+        (globalThis as any).TextEncoder = TextEncoderPolyfill;
+        console.log('[Polyfill] TextEncoder 已安装');
+        return true;
+    }
+    return false;
+}
+
+/**
+ * 检查 TextEncoder 是否可用（原生或 polyfill）
+ *
+ * @returns 是否可用
+ */
+export function isTextEncoderAvailable(): boolean {
+    return typeof globalThis.TextEncoder !== 'undefined';
+}
+
+export { TextEncoderPolyfill };
diff --git a/packages/platform-common/src/polyfills/index.ts b/packages/platform-common/src/polyfills/index.ts
new file mode 100644
index 00000000..cfdb9d57
--- /dev/null
+++ b/packages/platform-common/src/polyfills/index.ts
@@ -0,0 +1,58 @@
+/**
+ * 平台 polyfills
+ *
+ * 提供跨平台兼容性支持，用于填补不同平台的 API 差异
+ */
+
+export {
+    TextDecoderPolyfill,
+    installTextDecoderPolyfill,
+    isTextDecoderAvailable
+} from './TextDecoderPolyfill';
+
+export {
+    TextEncoderPolyfill,
+    installTextEncoderPolyfill,
+    isTextEncoderAvailable
+} from './TextEncoderPolyfill';
+
+import { installTextDecoderPolyfill } from './TextDecoderPolyfill';
+import { installTextEncoderPolyfill } from './TextEncoderPolyfill';
+
+/**
+ * 安装当前平台所需的所有 polyfills
+ *
+ * @returns 已安装的 polyfill 列表
+ */
+export function installAllPolyfills(): { installed: string[] } {
+    const installed: string[] = [];
+
+    if (installTextDecoderPolyfill()) {
+        installed.push('TextDecoder');
+    }
+
+    if (installTextEncoderPolyfill()) {
+        installed.push('TextEncoder');
+    }
+
+    return { installed };
+}
+
+/**
+ * 检查当前平台需要哪些 polyfills
+ *
+ * @returns 需要的 polyfill 名称列表
+ */
+export function getRequiredPolyfills(): string[] {
+    const required: string[] = [];
+
+    if (typeof globalThis.TextDecoder === 'undefined') {
+        required.push('TextDecoder');
+    }
+
+    if (typeof globalThis.TextEncoder === 'undefined') {
+        required.push('TextEncoder');
+    }
+
+    return required;
+}
diff --git a/packages/platform-common/src/wasm/IWasmLibraryLoader.ts b/packages/platform-common/src/wasm/IWasmLibraryLoader.ts
new file mode 100644
index 00000000..acb093d5
--- /dev/null
+++ b/packages/platform-common/src/wasm/IWasmLibraryLoader.ts
@@ -0,0 +1,240 @@
+/**
+ * WASM 库平台适配层
+ *
+ * 提供统一的 WASM 库加载接口，屏蔽不同平台的差异
+ *
+ * 支持的平台：
+ * - Web 浏览器（标准 WebAssembly API）
+ * - 微信小游戏（WXWebAssembly）
+ * - 字节跳动小游戏
+ * - 支付宝小游戏
+ * - 百度小游戏
+ */
+
+/**
+ * 平台类型枚举
+ */
+export enum PlatformType {
+    /** Web 浏览器 */
+    Web = 'web',
+    /** 微信小游戏 */
+    WeChatMiniGame = 'wechat-minigame',
+    /** 字节跳动小游戏 */
+    ByteDanceMiniGame = 'bytedance-minigame',
+    /** 支付宝小游戏 */
+    AlipayMiniGame = 'alipay-minigame',
+    /** 百度小游戏 */
+    BaiduMiniGame = 'baidu-minigame',
+    /** Node.js */
+    NodeJS = 'nodejs',
+    /** 未知平台 */
+    Unknown = 'unknown'
+}
+
+/**
+ * WASM 库加载配置
+ *
+ * @example
+ * ```typescript
+ * const config: WasmLibraryConfig = {
+ *     name: 'Rapier2D',
+ *     web: {
+ *         useCompat: true,  // Web 使用 compat 版本
+ *     },
+ *     minigame: {
+ *         wasmPath: 'wasm/rapier2d_bg.wasm',
+ *         needsTextDecoderPolyfill: true,
+ *     }
+ * };
+ * ```
+ */
+export interface WasmLibraryConfig {
+    /**
+     * 库名称（用于日志和错误提示）
+     */
+    name: string;
+
+    /**
+     * Web 平台配置
+     */
+    web?: {
+        /**
+         * 使用 -compat 版本（WASM 以 base64 嵌入 JS）
+         *
+         * 优点：无需额外配置，开箱即用
+         * 缺点：包体积较大，首次加载慢
+         */
+        useCompat?: boolean;
+
+        /**
+         * 模块路径（非 compat 版本时使用）
+         */
+        modulePath?: string;
+
+        /**
+         * WASM 文件路径（非 compat 版本时使用）
+         */
+        wasmPath?: string;
+    };
+
+    /**
+     * 小游戏平台配置
+     */
+    minigame?: {
+        /**
+         * WASM 文件路径（相对于小游戏根目录）
+         */
+        wasmPath: string;
+
+        /**
+         * JS glue 文件路径（可选）
+         */
+        gluePath?: string;
+
+        /**
+         * 是否需要 TextDecoder polyfill
+         *
+         * iOS 微信小游戏通常需要此 polyfill
+         */
+        needsTextDecoderPolyfill?: boolean;
+
+        /**
+         * 是否需要 TextEncoder polyfill
+         *
+         * iOS 微信小游戏通常需要此 polyfill
+         */
+        needsTextEncoderPolyfill?: boolean;
+    };
+
+    /**
+     * 自定义初始化函数
+     *
+     * 用于库特定的初始化逻辑
+     *
+     * @param wasmInstance - WASM 实例
+     * @returns 初始化后的模块
+     */
+    customInit?: (wasmInstance: any) => Promise<any>;
+}
+
+/**
+ * 平台信息
+ * Platform information
+ */
+export interface PlatformInfo {
+    /** 平台类型 | Platform type */
+    type: PlatformType;
+
+    /** 是否支持 WebAssembly | Supports WebAssembly */
+    supportsWasm: boolean;
+
+    /** 是否支持 SharedArrayBuffer | Supports SharedArrayBuffer */
+    supportsSharedArrayBuffer: boolean;
+
+    /** 需要安装的 polyfills 列表 | Required polyfills */
+    needsPolyfills: string[];
+
+    /**
+     * 是否在编辑器环境（Tauri 桌面应用）
+     * Whether running in editor environment (Tauri desktop app)
+     */
+    isEditor: boolean;
+}
+
+/**
+ * WASM 库加载器接口
+ *
+ * 每个 WASM 库需要实现此接口以支持跨平台加载
+ *
+ * @typeParam T - WASM 库模块类型
+ *
+ * @example
+ * ```typescript
+ * class Rapier2DLoader implements IWasmLibraryLoader<typeof RAPIER> {
+ *     async load(): Promise<typeof RAPIER> {
+ *         const RAPIER = await import('@dimforge/rapier2d-compat');
+ *         await RAPIER.init();
+ *         return RAPIER;
+ *     }
+ *
+ *     isSupported(): boolean {
+ *         return typeof WebAssembly !== 'undefined';
+ *     }
+ *
+ *     getPlatformInfo(): PlatformInfo {
+ *         return {
+ *             type: PlatformType.Web,
+ *             supportsWasm: true,
+ *             supportsSharedArrayBuffer: true,
+ *             needsPolyfills: []
+ *         };
+ *     }
+ * }
+ * ```
+ */
+export interface IWasmLibraryLoader<T> {
+    /**
+     * 加载 WASM 库
+     *
+     * @returns 加载完成的库模块
+     * @throws 如果加载失败或平台不支持
+     */
+    load(): Promise<T>;
+
+    /**
+     * 检查当前平台是否支持此库
+     *
+     * @returns 是否支持
+     */
+    isSupported(): boolean;
+
+    /**
+     * 获取当前平台信息
+     *
+     * @returns 平台信息
+     */
+    getPlatformInfo(): PlatformInfo;
+
+    /**
+     * 获取库配置
+     *
+     * @returns 库配置
+     */
+    getConfig(): WasmLibraryConfig;
+}
+
+/**
+ * 平台特定 WASM 加载器接口
+ *
+ * 提供平台级别的 WASM 加载能力
+ */
+export interface IPlatformWasmLoader {
+    /**
+     * 平台类型
+     */
+    readonly platformType: PlatformType;
+
+    /**
+     * 加载 WASM 模块
+     *
+     * @param wasmPath - WASM 文件路径
+     * @param imports - WASM 导入对象
+     * @returns WASM 实例
+     */
+    loadWasmModule(
+        wasmPath: string,
+        imports?: WebAssembly.Imports
+    ): Promise<WebAssembly.Instance>;
+
+    /**
+     * 检查是否支持 WASM
+     *
+     * @returns 是否支持
+     */
+    isSupported(): boolean;
+
+    /**
+     * 安装必要的 polyfills
+     */
+    installPolyfills(): void;
+}
diff --git a/packages/platform-common/src/wasm/WasmLibraryLoaderFactory.ts b/packages/platform-common/src/wasm/WasmLibraryLoaderFactory.ts
new file mode 100644
index 00000000..265554aa
--- /dev/null
+++ b/packages/platform-common/src/wasm/WasmLibraryLoaderFactory.ts
@@ -0,0 +1,241 @@
+/**
+ * WASM 库加载器工厂
+ *
+ * 提供自动平台检测和加载器创建功能
+ *
+ * @example
+ * ```typescript
+ * // 注册加载器
+ * WasmLibraryLoaderFactory.registerLoader(
+ *     'rapier2d',
+ *     PlatformType.Web,
+ *     () => new WebRapier2DLoader(config)
+ * );
+ *
+ * // 创建加载器（自动选择平台）
+ * const loader = WasmLibraryLoaderFactory.createLoader<typeof RAPIER>('rapier2d');
+ * const rapier = await loader.load();
+ * ```
+ */
+
+import { PlatformType, IWasmLibraryLoader } from './IWasmLibraryLoader';
+
+/**
+ * 加载器创建函数类型
+ */
+type LoaderFactory<T> = () => IWasmLibraryLoader<T>;
+
+/**
+ * 已注册的加载器映射
+ *
+ * 结构：libraryName -> platformType -> loaderFactory
+ */
+const registeredLoaders = new Map<string, Map<PlatformType, LoaderFactory<any>>>();
+
+/**
+ * 缓存的平台检测结果
+ */
+let detectedPlatform: PlatformType | null = null;
+
+/**
+ * WASM 库加载器工厂
+ */
+export class WasmLibraryLoaderFactory {
+    /**
+     * 注册 WASM 库加载器
+     *
+     * @param libraryName - 库名称（如 'rapier2d'）
+     * @param platform - 目标平台
+     * @param factory - 加载器工厂函数
+     *
+     * @example
+     * ```typescript
+     * WasmLibraryLoaderFactory.registerLoader(
+     *     'rapier2d',
+     *     PlatformType.Web,
+     *     () => new WebRapier2DLoader(config)
+     * );
+     * ```
+     */
+    static registerLoader<T>(
+        libraryName: string,
+        platform: PlatformType,
+        factory: LoaderFactory<T>
+    ): void {
+        if (!registeredLoaders.has(libraryName)) {
+            registeredLoaders.set(libraryName, new Map());
+        }
+        registeredLoaders.get(libraryName)!.set(platform, factory);
+    }
+
+    /**
+     * 检测当前运行平台
+     *
+     * 检测顺序：
+     * 1. 微信小游戏（wx 全局对象）
+     * 2. 字节跳动小游戏（tt 全局对象）
+     * 3. 支付宝小游戏（my 全局对象）
+     * 4. 百度小游戏（swan 全局对象）
+     * 5. Node.js（process 对象）
+     * 6. Web 浏览器（window + document）
+     *
+     * @returns 检测到的平台类型
+     */
+    static detectPlatform(): PlatformType {
+        if (detectedPlatform !== null) {
+            return detectedPlatform;
+        }
+
+        // 微信小游戏
+        if (typeof (globalThis as any).wx !== 'undefined') {
+            const wx = (globalThis as any).wx;
+            if (wx.getSystemInfo && wx.createCanvas) {
+                detectedPlatform = PlatformType.WeChatMiniGame;
+                return detectedPlatform;
+            }
+        }
+
+        // 字节跳动小游戏
+        if (typeof (globalThis as any).tt !== 'undefined') {
+            const tt = (globalThis as any).tt;
+            if (tt.getSystemInfo) {
+                detectedPlatform = PlatformType.ByteDanceMiniGame;
+                return detectedPlatform;
+            }
+        }
+
+        // 支付宝小游戏
+        if (typeof (globalThis as any).my !== 'undefined') {
+            const my = (globalThis as any).my;
+            if (my.getSystemInfo) {
+                detectedPlatform = PlatformType.AlipayMiniGame;
+                return detectedPlatform;
+            }
+        }
+
+        // 百度小游戏
+        if (typeof (globalThis as any).swan !== 'undefined') {
+            const swan = (globalThis as any).swan;
+            if (swan.getSystemInfo) {
+                detectedPlatform = PlatformType.BaiduMiniGame;
+                return detectedPlatform;
+            }
+        }
+
+        // Node.js
+        if (typeof process !== 'undefined' && process.versions?.node) {
+            detectedPlatform = PlatformType.NodeJS;
+            return detectedPlatform;
+        }
+
+        // Web 浏览器
+        if (typeof window !== 'undefined' && typeof document !== 'undefined') {
+            detectedPlatform = PlatformType.Web;
+            return detectedPlatform;
+        }
+
+        detectedPlatform = PlatformType.Unknown;
+        return detectedPlatform;
+    }
+
+    /**
+     * 创建 WASM 库加载器
+     *
+     * 自动检测平台并选择对应的加载器
+     *
+     * @param libraryName - 库名称
+     * @returns 对应平台的加载器实例
+     * @throws 如果库未注册或平台不支持
+     *
+     * @example
+     * ```typescript
+     * const loader = WasmLibraryLoaderFactory.createLoader<typeof RAPIER>('rapier2d');
+     * const rapier = await loader.load();
+     * ```
+     */
+    static createLoader<T>(libraryName: string): IWasmLibraryLoader<T> {
+        const platform = this.detectPlatform();
+        const libraryLoaders = registeredLoaders.get(libraryName);
+
+        if (!libraryLoaders) {
+            throw new Error(`[WasmLibraryLoaderFactory] 未注册的库: ${libraryName}`);
+        }
+
+        const factory = libraryLoaders.get(platform);
+
+        if (!factory) {
+            // 尝试使用 Web 加载器作为降级方案
+            const webFactory = libraryLoaders.get(PlatformType.Web);
+            if (webFactory && platform !== PlatformType.Unknown) {
+                console.warn(
+                    `[WasmLibraryLoaderFactory] 平台 ${platform} 没有专用加载器，使用 Web 加载器作为降级方案`
+                );
+                return webFactory() as IWasmLibraryLoader<T>;
+            }
+
+            throw new Error(
+                `[WasmLibraryLoaderFactory] 库 "${libraryName}" 不支持平台: ${platform}`
+            );
+        }
+
+        return factory() as IWasmLibraryLoader<T>;
+    }
+
+    /**
+     * 检查指定库是否支持当前平台
+     *
+     * @param libraryName - 库名称
+     * @returns 是否支持
+     */
+    static isLibrarySupported(libraryName: string): boolean {
+        const platform = this.detectPlatform();
+        const libraryLoaders = registeredLoaders.get(libraryName);
+
+        if (!libraryLoaders) {
+            return false;
+        }
+
+        return libraryLoaders.has(platform) || libraryLoaders.has(PlatformType.Web);
+    }
+
+    /**
+     * 获取库支持的所有平台
+     *
+     * @param libraryName - 库名称
+     * @returns 支持的平台列表
+     */
+    static getSupportedPlatforms(libraryName: string): PlatformType[] {
+        const libraryLoaders = registeredLoaders.get(libraryName);
+        if (!libraryLoaders) {
+            return [];
+        }
+        return Array.from(libraryLoaders.keys());
+    }
+
+    /**
+     * 获取所有已注册的库名称
+     *
+     * @returns 库名称列表
+     */
+    static getRegisteredLibraries(): string[] {
+        return Array.from(registeredLoaders.keys());
+    }
+
+    /**
+     * 清除平台检测缓存
+     *
+     * 主要用于测试
+     */
+    static clearPlatformCache(): void {
+        detectedPlatform = null;
+    }
+
+    /**
+     * 清除所有已注册的加载器
+     *
+     * 主要用于测试
+     */
+    static clearAllLoaders(): void {
+        registeredLoaders.clear();
+    }
+}
diff --git a/packages/platform-common/src/wasm/index.ts b/packages/platform-common/src/wasm/index.ts
new file mode 100644
index 00000000..148d3979
--- /dev/null
+++ b/packages/platform-common/src/wasm/index.ts
@@ -0,0 +1,16 @@
+/**
+ * WASM 库加载器
+ *
+ * 提供跨平台的 WASM 库加载支持
+ */
+
+export { PlatformType } from './IWasmLibraryLoader';
+
+export type {
+    WasmLibraryConfig,
+    PlatformInfo,
+    IWasmLibraryLoader,
+    IPlatformWasmLoader
+} from './IWasmLibraryLoader';
+
+export { WasmLibraryLoaderFactory } from './WasmLibraryLoaderFactory';