Abstract: The space utilization rate of the small single-piece mechanical auxiliary parking device that is convenient for prefabricated on-site installation is not high enough, while the large-scale integral mechanical auxiliary parking device requires more installation and construction time, occupying the space and parking space, and the impact on traffic. It is very serious. Therefore, this paper designs an assembled and convenient medium/small-sized mechanical auxiliary parking device, which can be used for rapid renovation and construction in narrow old residential quarters or newly designed residential quarters, such as during working hours. Construction, etc., to reduce interference to owners/car owners and traffic jams to avoid excessive inconvenience and construction noise to residents' lives.Sounds and so on. At the same time, it needs to have a higher space utilization rate, can park more vehicles than the traditional structural design, and needs to be highly automated/intelligent, that is the parking owner only needs fewer operating steps and actions. To achieve the purpose of parking and storage, but also to have a higher scheduling efficiency and scheduling speed, the queuing time of the storage/retrieval car should be saved as far as possible by optimizing the program and the sequence of actions, reducing the waiting time of the car owner, and achieving higher human-computer interaction efficiency.