diff --git a/communication/bluetooth_ble/src/main/js/test/BleGattManager.test.js b/communication/bluetooth_ble/src/main/js/test/BleGattManager.test.js
index f3d55ea9026cd521c332007cfca16afb98628d92..2e47397577895531a8e42a11b4a19cc35023b06b 100644
--- a/communication/bluetooth_ble/src/main/js/test/BleGattManager.test.js
+++ b/communication/bluetooth_ble/src/main/js/test/BleGattManager.test.js
@@ -125,6 +125,7 @@ describe('bluetoothBLETest', function() {
         console.info('[bluetooth_js] gattClient connect' + ret)
         expect(ret).assertTrue();
         gattClient.disconnect();
+        await sleep(2000);
         await gattClient.off("BLEConnectionStateChange");
         done()
    })