The spider cart is the youngest kind of aerial work platform. The spider car has a foldable fuselage and can move indoors and outdoors, making it a rookie in high-altitude operations. Because of its small size, it can be accessed from the entrance hall. It is an ideal tool for high-altitude operations in buildings. Therefore, it is widely used in the maintenance and cleaning services of electric power, stations, gardens, and public venues. Compared with wheeled self-propelled platforms, spider-type aerial work platforms are lighter in weight than wheeled self-propelled platforms, and the weight is 1/4-1/2 of the latter. Therefore, spider vehicles must have outriggers to ensure the stability of the equipment. Spider vehicles are divided into rubber track type and wheel type according to the different ways of walking. The rubber crawler spider vehicle can be used in a variety of aerials, even in rough muddy aerials or delicate marble aerials. The wheeled spider car can make the collection width narrower, but it is limited to use inside and outside the building.