Nowadays, people decorate houses and like European decoration design very much, and the arch design is sometimes considered for the gate. Although this design is novel in appearance, in Feng Shui, this door looks like a tombstone, which is very unlucky. Not only is the arch of the gate poorly designed, but as long as the semi-arc door frame appears in the home, it belongs to the category of "arch evil" and will affect the main luck in the home. Therefore, it is suggested that residents should not form an unlucky feng shui pattern in pursuit of beautiful appearance when decorating their houses.