The invention provides an intelligent parking garage and an installation and construction method thereof. The intelligent parking garage comprises a steel bottom plate, clamping and connecting mechanisms, a limiting device, a charging device and an auxiliary device, wherein the steel bottom plate is of an L-shaped structure, the clamping and connecting mechanisms are evenly arranged on the left end face of the steel bottom plate, the limiting device is installed at the upper ends of the clamping and connecting mechanisms, the charging device is arranged on the inner side of the left end face of the steel bottom plate in a sliding fit mode, and the auxiliary device is arranged on the outer side of the left end face of the steel bottom plate. According to the intelligent parking garage and the installation and construction method thereof, the problems that a, in the using process of an existing parking garage, a charging pile on the edge of the existing parking garage is mostly of an exposed structure, a large amount of dust is likely to be attached to the charging pile exposed in air, the surface of the charging pile is difficult to clean, and the position of the charging pile is fixed, so that a vehicle is inconvenient to charge according to actual requirements; and b, the vehicle is prone to being in rigid collision with a stop block in a backing-up process, the vehicle is caused to shake, and vehicle tires are easy to abrade, and the like are solved.