The invention discloses an automatic liftable automobile maintenance deck, which comprises a deck, the left side of the deck is fixedly connected with a bearing, the inside of the bearing is provided with a rotating shaft, and the front and back of the rotating shaft are connected with a concave rotating plate. The front and back of the inner wall are fixedly connected, and the lower surface of the concave rotating plate is fixedly connected with a fixed block. The self-lifting automobile maintenance lying board, by setting bearings and rotating shafts, enables the maintenance workers to save more effort when overhauling the automobile chassis, protects the waist and neck of the maintenance workers, and improves the work efficiency of the maintenance workers. Support plate, first pin shaft, second pin shaft, sliding sleeve, sliding rod, motor, threaded column, threaded cap, control panel and battery, so that maintenance workers can control the rotating shaft to rotate around the side of the deck through the control panel, thereby It makes the operation of the maintenance workers easier, saves the physical strength of the maintenance workers, and improves the work efficiency of the maintenance workers.