diff --git a/cocos/physics-2d/box2d-wasm/joints/fixed-joint.ts b/cocos/physics-2d/box2d-wasm/joints/fixed-joint.ts
index 6084d7e55c5..32ea72a8a65 100644
--- a/cocos/physics-2d/box2d-wasm/joints/fixed-joint.ts
+++ b/cocos/physics-2d/box2d-wasm/joints/fixed-joint.ts
@@ -30,10 +30,14 @@ import { PHYSICS_2D_PTM_RATIO } from '../../framework/physics-types';
 
 export class B2FixedJoint extends B2Joint implements IFixedJoint {
     setFrequency (v: number): void {
-        (this._b2joint as B2.WeldJoint).SetFrequency(v);
+        if (this._b2joint) {
+            (this._b2joint as B2.WeldJoint).SetFrequency(v);
+        }
     }
     setDampingRatio (v: number): void {
-        (this._b2joint as B2.WeldJoint).SetDampingRatio(v);
+        if (this._b2joint) {
+            (this._b2joint as B2.WeldJoint).SetDampingRatio(v);
+        }
     }
 
     _createJointDef (): any {
diff --git a/cocos/physics-2d/box2d-wasm/joints/spring-joint.ts b/cocos/physics-2d/box2d-wasm/joints/spring-joint.ts
index e0ca9102b88..81e9451c6bf 100644
--- a/cocos/physics-2d/box2d-wasm/joints/spring-joint.ts
+++ b/cocos/physics-2d/box2d-wasm/joints/spring-joint.ts
@@ -30,12 +30,15 @@ import { PHYSICS_2D_PTM_RATIO } from '../../framework/physics-types';
 
 export class B2SpringJoint extends B2Joint implements ISpringJoint {
     setFrequency (v: number): void {
-        (this._b2joint as B2.DistanceJoint).SetFrequency(v);
+        if (this._b2joint) {
+            (this._b2joint as B2.DistanceJoint).SetFrequency(v);
+        }
     }
 
     setDampingRatio (v: number): void {
-        //this.updateStiffnessAndDamping();
-        (this._b2joint as B2.DistanceJoint).SetDampingRatio(v);
+        if (this._b2joint) {
+            (this._b2joint as B2.DistanceJoint).SetDampingRatio(v);
+        }
     }
 
     setDistance (v: number): void {
diff --git a/cocos/physics-2d/box2d-wasm/joints/wheel-joint.ts b/cocos/physics-2d/box2d-wasm/joints/wheel-joint.ts
index c2faa6e1654..9f8625ae944 100644
--- a/cocos/physics-2d/box2d-wasm/joints/wheel-joint.ts
+++ b/cocos/physics-2d/box2d-wasm/joints/wheel-joint.ts
@@ -31,10 +31,14 @@ import { toRadian } from '../../../core';
 
 export class B2WheelJoint extends B2Joint implements IWheelJoint {
     setFrequency (v: number): void {
-        (this._b2joint as B2.WheelJoint as any).SetSpringFrequencyHz(v);
+        if (this._b2joint) {
+            (this._b2joint as B2.WheelJoint as any).SetSpringFrequencyHz(v);
+        }
     }
     setDampingRatio (v: number): void {
-        (this._b2joint as B2.WheelJoint as any).SetSpringDampingRatio(v);
+        if (this._b2joint) {
+            (this._b2joint as B2.WheelJoint as any).SetSpringDampingRatio(v);
+        }
     }
 
     // motor