The utility model discloses a bathroom cabinet, including the ceramic basin and the cabinet body, the cabinet physically constitutes by controlling two metal U-shaped framves, two blocks of curb plates of the left and right sides, face frame, bottom plate and backplates, the metal U-shaped puts up by preceding vertical arm, the vertical arm in back and connects in their bottoms and constitute with the horizontal arm of their verticallies, it is equipped with the screw to lie in the position of having a perfect understanding the outside on the vertical arm in back, the position department that the curb plate is relative with the screw is equipped with through-hole I, the expanding element rear end is equipped with the expansible foot, the front end has spacing head, the top surface that vertical arm and the vertical arm in back were gone forward to pottery pelvic floor face and metal U-shaped frame offsets, be equipped with bleeder vent or ventilation shutter on the door. The beneficial effects of the utility model are that: two metal U-shaped framves were as supporting the main part about bathroom cabinet adopted, and supported effects is better, thereby can make the expanding element spreading firmly install in on the wall during the installation, can not drop to can hug closely the wall body by bathroom cabinet, strong practicability.