Underground parking lot vehicle positioning device

The utility model discloses an underground parking lot vehicle positioning device which comprises a parking plate, the parking plate is of a hollow box-shaped structure, two containing grooves are formed in the upper end of the parking plate, gear plates are arranged in the containing grooves, and a lifting mechanism used for synchronously driving the gear plates to ascend and descend is arranged in the parking plate. Two induction mechanisms are arranged at the positions, close to the containing groove, of the upper end of the gear plate, and the induction mechanisms and the lifting mechanism are connected with a controller. Through mutual cooperation of the sensing mechanism, the lifting mechanism and the controller, the gear plate is contained in the containing groove in a normal state, during parking, the sensing mechanism senses the position of a wheel, the lifting mechanism lifts the gear plate upwards so as to position the wheel at a high height, the parking positioning safety is improved, meanwhile, t