PURPOSE: A mouth washing device using a bidet is provided to facilitate the heating of water to an appropriate temperature and the spraying water.CONSTITUTION: A mouth washing device using a bidet installs a valve on a handle of the mouth washing device or on the place near the handle. Water comes out of the mouth washing device once the valve is opened, and the water in a hose is discharged through a basin, a drain, a floor, a toilet or the bidet as another hose connected to the valve is closed. Moreover, in case of the mouth washing device which uses stored water in a container, the hose is connected to the container and water is sent to the water container. Water is discharged through a faucet in case the mouth washing device is connected to the faucet.COPYRIGHT KIPO 2013전기를 사용하는 비데는 냉수를 받아 전기의 힘으로 물을 따뜻하게 할 수 있으며 전기 모타의 힘으로 물을 강하게 밀어 낸다.이 두 가지 비데의 기능을 빌려 구강세정기로도 사용하는 것이다.