The shape of this parking system is rectangle. Single tower is 3 rows design. The structure is divided into lifting channel and parking area. The come type lifter and lifting system is set in the lifting channel. The parking area is on the left and right side of the lifting channel. The entrance is set on the ground floor of the lifting channel. Turn table can also be set at the entrance. When saving or retrieving the cars, the lifter will get the car from the parking spaces through comb exchanging and lift the car to the aim floor. The sliding comb frame will move the car from the parking spaces to the lifting channel. The turntable will turn the cars around for the convenience of driving out.