diff --git a/cocos/physics/physx/character-controllers/physx-box-character-controller.ts b/cocos/physics/physx/character-controllers/physx-box-character-controller.ts
index 3d58ac36e8e..738d23101d0 100644
--- a/cocos/physics/physx/character-controllers/physx-box-character-controller.ts
+++ b/cocos/physics/physx/character-controllers/physx-box-character-controller.ts
@@ -34,6 +34,8 @@ import { degreesToRadians } from '../../../core/utils/misc';
 
 const v3_0 = new Vec3(0, 0, 0);
 const upDir = new Vec3(0, 1, 0);
+
+/** @mangle */
 export class PhysXBoxCharacterController extends PhysXCharacterController implements IBoxCharacterController {
     get component (): BoxCharacterController {
         return this._comp as BoxCharacterController;
diff --git a/cocos/physics/physx/character-controllers/physx-capsule-character-controller.ts b/cocos/physics/physx/character-controllers/physx-capsule-character-controller.ts
index 9e4dfdd2b50..a53b0e56c72 100644
--- a/cocos/physics/physx/character-controllers/physx-capsule-character-controller.ts
+++ b/cocos/physics/physx/character-controllers/physx-capsule-character-controller.ts
@@ -34,6 +34,8 @@ import { degreesToRadians } from '../../../core/utils/misc';
 
 const v3_0 = new Vec3(0, 0, 0);
 const upDir = new Vec3(0, 1, 0);//temp
+
+/** @mangle */
 export class PhysXCapsuleCharacterController extends PhysXCharacterController implements ICapsuleCharacterController {
     get component (): CapsuleCharacterController {
         return this._comp as CapsuleCharacterController;
diff --git a/cocos/physics/physx/character-controllers/physx-character-controller.ts b/cocos/physics/physx/character-controllers/physx-character-controller.ts
index 2c6d25b881c..9641ad2d2f7 100644
--- a/cocos/physics/physx/character-controllers/physx-character-controller.ts
+++ b/cocos/physics/physx/character-controllers/physx-character-controller.ts
@@ -34,6 +34,8 @@ import { TransformBit } from '../../../scene-graph';
 
 const v3_0 = new Vec3(0, 0, 0);
 const v3_1 = new Vec3(0, 0, 0);
+
+/** @mangle */
 export class PhysXCharacterController implements IBaseCharacterController {
     private _isEnabled = false;
     protected _impl: any = null;
diff --git a/cocos/physics/physx/joints/physx-configurable-joint.ts b/cocos/physics/physx/joints/physx-configurable-joint.ts
index f8f881dede1..d592b3cb55c 100644
--- a/cocos/physics/physx/joints/physx-configurable-joint.ts
+++ b/cocos/physics/physx/joints/physx-configurable-joint.ts
@@ -46,6 +46,7 @@ function getConstraintFlag (v: EConstraintMode): any {
     }
 }
 
+/** @mangle */
 export class PhysXConfigurableJoint extends PhysXJoint implements IConfigurableConstraint {
     protected _setLinearLimit (): void {
         const linearLimit = this.constraint.linearLimitSettings;
diff --git a/cocos/physics/physx/joints/physx-fixed-joint.ts b/cocos/physics/physx/joints/physx-fixed-joint.ts
index ea25afbac19..bf81cc093c1 100644
--- a/cocos/physics/physx/joints/physx-fixed-joint.ts
+++ b/cocos/physics/physx/joints/physx-fixed-joint.ts
@@ -33,6 +33,7 @@ const v3_0 = new Vec3();
 const quat_0 = new Quat();
 const mat_0 = new Mat4();
 
+/** @mangle */
 export class PhysXFixedJoint extends PhysXJoint implements IFixedConstraint {
     setBreakForce (v: number): void {
         this._breakForce = this.constraint.breakForce;
diff --git a/cocos/physics/physx/joints/physx-joint.ts b/cocos/physics/physx/joints/physx-joint.ts
index 6be6778e8e0..55aa0c54930 100644
--- a/cocos/physics/physx/joints/physx-joint.ts
+++ b/cocos/physics/physx/joints/physx-joint.ts
@@ -29,6 +29,7 @@ import { PX, setJointActors, _pxtrans } from '../physx-adapter';
 import { PhysXRigidBody } from '../physx-rigid-body';
 import { PhysXInstance } from '../physx-instance';
 
+/** @mangle */
 export class PhysXJoint implements IBaseConstraint {
     private static _tempActor: any;
 
diff --git a/cocos/physics/physx/joints/physx-revolute-joint.ts b/cocos/physics/physx/joints/physx-revolute-joint.ts
index 4f6997874ce..a1f17ea1a89 100644
--- a/cocos/physics/physx/joints/physx-revolute-joint.ts
+++ b/cocos/physics/physx/joints/physx-revolute-joint.ts
@@ -35,6 +35,7 @@ const v3_2 = new Vec3();
 const quat_0 = new Quat();
 const mat_0 = new Mat4();
 
+/** @mangle */
 export class PhysXRevoluteJoint extends PhysXJoint implements IHingeConstraint {
     private _limitPair = new PX.PxJointAngularLimitPair(0, 0);
 
diff --git a/cocos/physics/physx/joints/physx-spherical-joint.ts b/cocos/physics/physx/joints/physx-spherical-joint.ts
index f463614754a..7e77637a167 100644
--- a/cocos/physics/physx/joints/physx-spherical-joint.ts
+++ b/cocos/physics/physx/joints/physx-spherical-joint.ts
@@ -28,6 +28,7 @@ import { IPointToPointConstraint } from '../../spec/i-physics-constraint';
 import { PX, _trans, getTempTransform, _pxtrans } from '../physx-adapter';
 import { PhysXJoint } from './physx-joint';
 
+/** @mangle */
 export class PhysXSphericalJoint extends PhysXJoint implements IPointToPointConstraint {
     setPivotA (v: IVec3Like): void {
         const cs = this.constraint;
diff --git a/cocos/physics/physx/physx-contact-equation.ts b/cocos/physics/physx/physx-contact-equation.ts
index d7df69ac6bb..2340b06170a 100644
--- a/cocos/physics/physx/physx-contact-equation.ts
+++ b/cocos/physics/physx/physx-contact-equation.ts
@@ -27,6 +27,8 @@ import { IContactEquation, ICollisionEvent, Collider } from '../framework';
 import { getContactNormal, getContactPosition } from './physx-adapter';
 
 const quat = new Quat();
+
+/** @mangle */
 export class PhysXContactEquation implements IContactEquation {
     get isBodyA (): boolean {
         return this.colliderA.uuid === this.event.selfCollider.uuid;
diff --git a/cocos/physics/physx/physx-rigid-body.ts b/cocos/physics/physx/physx-rigid-body.ts
index 1213d620e89..7d59ef22a92 100644
--- a/cocos/physics/physx/physx-rigid-body.ts
+++ b/cocos/physics/physx/physx-rigid-body.ts
@@ -32,6 +32,7 @@ import { PhysXWorld } from './physx-world';
 
 const v3_0 = new Vec3();
 
+/** @mangle */
 export class PhysXRigidBody implements IRigidBody {
     get impl (): any { return this._sharedBody.impl; }
 
diff --git a/cocos/physics/physx/physx-shared-body.ts b/cocos/physics/physx/physx-shared-body.ts
index c4470d4e2ae..f36567ff232 100644
--- a/cocos/physics/physx/physx-shared-body.ts
+++ b/cocos/physics/physx/physx-shared-body.ts
@@ -38,6 +38,7 @@ import { PhysXJoint } from './joints/physx-joint';
 import { PhysicsGroup } from '../framework/physics-enum';
 import { Node } from '../../scene-graph';
 
+/** @mangle */
 export class PhysXSharedBody {
     private static idCounter = 0;
     private static readonly sharedBodesMap = new Map<string, PhysXSharedBody>();
diff --git a/cocos/physics/physx/shapes/physx-box-shape.ts b/cocos/physics/physx/shapes/physx-box-shape.ts
index 98836ffd46f..62988591624 100644
--- a/cocos/physics/physx/shapes/physx-box-shape.ts
+++ b/cocos/physics/physx/shapes/physx-box-shape.ts
@@ -29,6 +29,7 @@ import { PX } from '../physx-adapter';
 import { EPhysXShapeType, PhysXShape } from './physx-shape';
 import { PhysXInstance } from '../physx-instance';
 
+/** @mangle */
 export class PhysXBoxShape extends PhysXShape implements IBoxShape {
     static BOX_GEOMETRY: any;
 
diff --git a/cocos/physics/physx/shapes/physx-capsule-shape.ts b/cocos/physics/physx/shapes/physx-capsule-shape.ts
index aa22f904ea1..f4821607749 100644
--- a/cocos/physics/physx/shapes/physx-capsule-shape.ts
+++ b/cocos/physics/physx/shapes/physx-capsule-shape.ts
@@ -29,6 +29,7 @@ import { PX } from '../physx-adapter';
 import { PhysXInstance } from '../physx-instance';
 import { EPhysXShapeType, PhysXShape } from './physx-shape';
 
+/** @mangle */
 export class PhysXCapsuleShape extends PhysXShape implements ICapsuleShape {
     static CAPSULE_GEOMETRY: any;
 
diff --git a/cocos/physics/physx/shapes/physx-cone-shape.ts b/cocos/physics/physx/shapes/physx-cone-shape.ts
index 8caa2eba1a2..4c3a35be50e 100644
--- a/cocos/physics/physx/shapes/physx-cone-shape.ts
+++ b/cocos/physics/physx/shapes/physx-cone-shape.ts
@@ -30,6 +30,7 @@ import { createConvexMesh, createMeshGeometryFlags, PX, _trans } from '../physx-
 import { PhysXInstance } from '../physx-instance';
 import { EPhysXShapeType, PhysXShape } from './physx-shape';
 
+/** @mangle */
 export class PhysXConeShape extends PhysXShape implements IConeShape {
     static CONVEX_MESH: any;
     geometry: any;
diff --git a/cocos/physics/physx/shapes/physx-cylinder-shape.ts b/cocos/physics/physx/shapes/physx-cylinder-shape.ts
index f0f5fcf22c5..8ec2f2c3c1d 100644
--- a/cocos/physics/physx/shapes/physx-cylinder-shape.ts
+++ b/cocos/physics/physx/shapes/physx-cylinder-shape.ts
@@ -30,6 +30,7 @@ import { createConvexMesh, createMeshGeometryFlags, PX, _trans } from '../physx-
 import { PhysXInstance } from '../physx-instance';
 import { EPhysXShapeType, PhysXShape } from './physx-shape';
 
+/** @mangle */
 export class PhysXCylinderShape extends PhysXShape implements ICylinderShape {
     static CONVEX_MESH: any;
     geometry: any;
diff --git a/cocos/physics/physx/shapes/physx-plane-shape.ts b/cocos/physics/physx/shapes/physx-plane-shape.ts
index 569424ad85f..3012637b514 100644
--- a/cocos/physics/physx/shapes/physx-plane-shape.ts
+++ b/cocos/physics/physx/shapes/physx-plane-shape.ts
@@ -29,6 +29,7 @@ import { getTempTransform, PX, _trans } from '../physx-adapter';
 import { PhysXInstance } from '../physx-instance';
 import { EPhysXShapeType, PhysXShape } from './physx-shape';
 
+/** @mangle */
 export class PhysXPlaneShape extends PhysXShape implements IPlaneShape {
     static PLANE_GEOMETRY: any;
 
diff --git a/cocos/physics/physx/shapes/physx-shape.ts b/cocos/physics/physx/shapes/physx-shape.ts
index 79bf1521f5a..d370f492a03 100644
--- a/cocos/physics/physx/shapes/physx-shape.ts
+++ b/cocos/physics/physx/shapes/physx-shape.ts
@@ -46,6 +46,7 @@ export enum EPhysXShapeType {
     MESH,
 }
 
+/** @mangle */
 export class PhysXShape implements IBaseShape {
     private static _MESH_SCALE: any;
     static get MESH_SCALE (): any {
diff --git a/cocos/physics/physx/shapes/physx-sphere-shape.ts b/cocos/physics/physx/shapes/physx-sphere-shape.ts
index 8c492487436..17dcc11660f 100644
--- a/cocos/physics/physx/shapes/physx-sphere-shape.ts
+++ b/cocos/physics/physx/shapes/physx-sphere-shape.ts
@@ -29,6 +29,7 @@ import { PX } from '../physx-adapter';
 import { PhysXInstance } from '../physx-instance';
 import { EPhysXShapeType, PhysXShape } from './physx-shape';
 
+/** @mangle */
 export class PhysXSphereShape extends PhysXShape implements ISphereShape {
     static SPHERE_GEOMETRY: any;
 
diff --git a/cocos/physics/physx/shapes/physx-terrain-shape.ts b/cocos/physics/physx/shapes/physx-terrain-shape.ts
index 960300e8abc..8efc3169862 100644
--- a/cocos/physics/physx/shapes/physx-terrain-shape.ts
+++ b/cocos/physics/physx/shapes/physx-terrain-shape.ts
@@ -30,6 +30,7 @@ import { createHeightField, createHeightFieldGeometry, getTempTransform, PX } fr
 import { PhysXInstance } from '../physx-instance';
 import { EPhysXShapeType, PhysXShape } from './physx-shape';
 
+/** @mangle */
 export class PhysXTerrainShape extends PhysXShape implements ITerrainShape {
     static heightScale = 1 / 512;
 
diff --git a/cocos/physics/physx/shapes/physx-trimesh-shape.ts b/cocos/physics/physx/shapes/physx-trimesh-shape.ts
index b5cd90fba66..ee752d15741 100644
--- a/cocos/physics/physx/shapes/physx-trimesh-shape.ts
+++ b/cocos/physics/physx/shapes/physx-trimesh-shape.ts
@@ -31,6 +31,7 @@ import { addReference, createConvexMesh, createMeshGeometryFlags, createTriangle
 import { EPhysXShapeType, PhysXShape } from './physx-shape';
 import { PhysXInstance } from '../physx-instance';
 
+/** @mangle */
 export class PhysXTrimeshShape extends PhysXShape implements ITrimeshShape {
     geometry: any;