diff --git a/sensors/sensor_standard/src/main/js/default/test/SensorOnOffTest.test.js b/sensors/sensor_standard/src/main/js/default/test/SensorOnOffTest.test.js
index ee7d27dfaaf0a395f6eaa6ddbb0de59cb0cf0048..5bbb0f7abcb09e5f1eb266771e940f7f73cb04b5 100755
--- a/sensors/sensor_standard/src/main/js/default/test/SensorOnOffTest.test.js
+++ b/sensors/sensor_standard/src/main/js/default/test/SensorOnOffTest.test.js
@@ -78,18 +78,19 @@ describe('SystemParameterTest', function () {
      */
     it('SUB_SENSORS_Sensor_JSTest_0020', 0, async function (done) {
         console.info('SUB_SENSORS_Sensor_JSTest_0020 start');
-        await sensor.on(testNullSensorId, function (data) {
-            if (data) {
-                console.info('testRegisterSensortest002  on success');
-                expect(false).assertTrue();
-                done();
-            }
-        });
-        setTimeout(() => {
+       function onSensorCallback(data) {
+            console.info('SensorJsTest002  on error');
+            expect(false).assertTrue();
+            done();
+        }
+		 try {
+            sensor.on(testNullSensorId, onSensorCallback);
+        } catch (error) {
+            console.info(error);
             expect(true).assertTrue();
             done();
-        }, 500)
-        console.info('SUB_SENSORS_Sensor_JSTest_0020 end');
+        }
+        console.info('SUB_SENSORS_Sensor_JSTest_0020 end'); 
     })
 
 })
\ No newline at end of file