diff --git a/packages/physics-rapier2d/src/Physics2DComponentsModule.ts b/packages/physics-rapier2d/src/Physics2DComponentsModule.ts
index 5650c9b6..04f5dbf1 100644
--- a/packages/physics-rapier2d/src/Physics2DComponentsModule.ts
+++ b/packages/physics-rapier2d/src/Physics2DComponentsModule.ts
@@ -6,7 +6,7 @@
  * 用于编辑器中的组件序列化/反序列化
  */
 
-import { ComponentRegistry } from '@esengine/ecs-framework';
+import type { IComponentRegistry } from '@esengine/ecs-framework';
 import type { IRuntimeModule } from '@esengine/engine-core';
 
 // Components (no WASM dependency)
@@ -26,8 +26,9 @@ import { PolygonCollider2DComponent } from './components/PolygonCollider2DCompon
 export class Physics2DComponentsModule implements IRuntimeModule {
     /**
      * 注册组件到 ComponentRegistry
+     * Register components to ComponentRegistry
      */
-    registerComponents(registry: typeof ComponentRegistry): void {
+    registerComponents(registry: IComponentRegistry): void {
         registry.register(Rigidbody2DComponent);
         registry.register(BoxCollider2DComponent);
         registry.register(CircleCollider2DComponent);
diff --git a/packages/physics-rapier2d/src/PhysicsEditorPlugin.ts b/packages/physics-rapier2d/src/PhysicsEditorPlugin.ts
index 403e9ec6..695d472f 100644
--- a/packages/physics-rapier2d/src/PhysicsEditorPlugin.ts
+++ b/packages/physics-rapier2d/src/PhysicsEditorPlugin.ts
@@ -4,11 +4,14 @@
  * 编辑器版本的物理插件，不包含 WASM 依赖。
  * Editor version of physics plugin, without WASM dependencies.
  *
- * 用于编辑器中注册插件清单，但不创建运行时模块。
- * 运行时使用 PhysicsPlugin from '@esengine/physics-rapier2d/runtime'
+ * 使用轻量级 Physics2DComponentsModule 注册组件，
+ * 使场景中的物理组件可以正确序列化/反序列化。
+ * Uses lightweight Physics2DComponentsModule to register components,
+ * enabling proper serialization/deserialization of physics components in scenes.
  */
 
 import type { IRuntimePlugin, ModuleManifest } from '@esengine/engine-core';
+import { Physics2DComponentsModule } from './Physics2DComponentsModule';
 
 const manifest: ModuleManifest = {
     id: '@esengine/physics-rapier2d',
@@ -30,12 +33,15 @@ const manifest: ModuleManifest = {
 };
 
 /**
- * 编辑器物理插件（无运行时模块）
- * Editor physics plugin (no runtime module)
+ * 编辑器物理插件（轻量级运行时模块）
+ * Editor physics plugin (lightweight runtime module)
  *
- * 编辑器使用此版本注册插件，运行时使用带 WASM 的完整版本。
+ * 使用 Physics2DComponentsModule 注册组件，用于场景反序列化。
+ * 不包含 WASM 依赖，不创建物理系统。
+ * Uses Physics2DComponentsModule for component registration (scene deserialization).
+ * No WASM dependency, no physics system creation.
  */
 export const Physics2DPlugin: IRuntimePlugin = {
-    manifest
-    // No runtime module - editor doesn't need physics simulation
+    manifest,
+    runtimeModule: new Physics2DComponentsModule()
 };
diff --git a/packages/physics-rapier2d/src/PhysicsRuntimeModule.ts b/packages/physics-rapier2d/src/PhysicsRuntimeModule.ts
index 69b3dd74..2550a845 100644
--- a/packages/physics-rapier2d/src/PhysicsRuntimeModule.ts
+++ b/packages/physics-rapier2d/src/PhysicsRuntimeModule.ts
@@ -4,8 +4,7 @@
  * 提供 Rapier2D 物理引擎的 ECS 集成
  */
 
-import type { IScene, ServiceContainer } from '@esengine/ecs-framework';
-import { ComponentRegistry } from '@esengine/ecs-framework';
+import type { IScene, ServiceContainer, IComponentRegistry } from '@esengine/ecs-framework';
 import type { IRuntimeModule, IRuntimePlugin, ModuleManifest, SystemContext } from '@esengine/engine-core';
 import { WasmLibraryLoaderFactory } from '@esengine/platform-common';
 import type * as RAPIER from '@esengine/rapier2d';
@@ -101,10 +100,11 @@ class PhysicsRuntimeModule implements IRuntimeModule {
 
     /**
      * 注册物理组件
+     * Register physics components
      *
-     * @param registry - 组件注册表
+     * @param registry - 组件注册表 | Component registry
      */
-    registerComponents(registry: typeof ComponentRegistry): void {
+    registerComponents(registry: IComponentRegistry): void {
         registry.register(Rigidbody2DComponent);
         registry.register(BoxCollider2DComponent);
         registry.register(CircleCollider2DComponent);
diff --git a/packages/physics-rapier2d/src/loaders/Rapier2DLoaderConfig.ts b/packages/physics-rapier2d/src/loaders/Rapier2DLoaderConfig.ts
index b3195b90..cacb8395 100644
--- a/packages/physics-rapier2d/src/loaders/Rapier2DLoaderConfig.ts
+++ b/packages/physics-rapier2d/src/loaders/Rapier2DLoaderConfig.ts
@@ -9,11 +9,16 @@ import { isEditorEnvironment } from '@esengine/platform-common';
 /**
  * 获取 WASM 路径
  * Get WASM path based on environment
+ *
+ * Editor: engine/rapier2d/pkg/rapier_wasm2d_bg.wasm (deployed by vite build plugin)
+ * Runtime: wasm/rapier_wasm2d_bg.wasm (deployed by game build)
  */
 function getWasmPath(): string {
     const isEditor = isEditorEnvironment();
+    // Editor uses dist/engine/rapier2d/pkg/ structure (from vite copy-engine-modules plugin)
+    // 编辑器使用 dist/engine/rapier2d/pkg/ 结构（来自 vite copy-engine-modules 插件）
     const path = isEditor
-        ? 'engine/physics-rapier2d/rapier_wasm2d_bg.wasm'
+        ? 'engine/rapier2d/pkg/rapier_wasm2d_bg.wasm'
         : 'wasm/rapier_wasm2d_bg.wasm';
 
     console.log(`[Rapier2D] isEditor=${isEditor}, wasmPath=${path}`);
@@ -32,7 +37,7 @@ export const Rapier2DLoaderConfig: WasmLibraryConfig = {
     web: {
         /**
          * WASM 文件路径
-         * 编辑器: engine/physics-rapier2d/rapier_wasm2d_bg.wasm
+         * 编辑器: engine/rapier2d/pkg/rapier_wasm2d_bg.wasm
          * 运行时: wasm/rapier_wasm2d_bg.wasm
          */
         get wasmPath(): string {