diff --git a/graphic/windowstandard/src/main/js/test/display.test.js b/graphic/windowstandard/src/main/js/test/display.test.js
index 61c7eb6abfc987d63432b4739e4f365f08f81b1d..fb969b960353761d4aef4695a5cdf0286705c047 100644
--- a/graphic/windowstandard/src/main/js/test/display.test.js
+++ b/graphic/windowstandard/src/main/js/test/display.test.js
@@ -152,6 +152,36 @@ describe('display_test', function () {
         })
     })
 
+    /**
+     * @tc.number		SUB_WMS_GETDEFALUTDISPLAYSYNC_JSAPI_001
+     * @tc.name			Test getDefaultDisplaySYNC_Test_001
+     * @tc.desc			To test the sync function of obtaining the default display
+     */
+    it('getDefaultDisplaySync_Test_001', 0, async function (done) {
+        console.info('displayTest getDefaultDisplaySyncTest1 begin');
+        try {
+            var dsp = display.getDefaultDisplaySync();
+            console.info('displayTest getDefaultDisplaySyncTest1: ' + JSON.stringify(dsp));
+            expect(dsp.id != null).assertTrue();
+            expect(dsp.refreshRate != null).assertTrue();
+            expect(dsp.width != null).assertTrue();
+            expect(dsp.height != null).assertTrue();
+            expect(dsp.rotation != null).assertTrue();
+            expect(dsp.densityDPI != null).assertTrue();
+            expect(dsp.name != null).assertTrue();
+            expect(dsp.alive).assertEqual(undefined);
+            expect(dsp.state).assertEqual(undefined);
+            expect(dsp.densityPixels != null).assertTrue();
+            expect(dsp.scaledDensity !=null).assertTrue();
+            expect(dsp.xDPI).assertEqual(undefined);
+            expect(dsp.yDPI).assertEqual(undefined);
+            done();
+        } catch (err) {
+            console.error('getDefaultDisplaySyncTest1 error ' + JSON.stringify(err));
+            expect.assertFail();
+            done();
+        }
+    })
 
     /**
      * @tc.number	SUB_WMS_ENUM_WINDOWDisplayState_JSAPI_001