The invention provides an intelligent parking space sharing method and system. When a vehicle is in the vicinity of a parking space, the two-dimensional code on an intelligent parking space lock can be scanned through a mobile client, and the intelligent parking space lock is triggered to unlock; when the vehicle is not in the vicinity of the parking space, the parking space information can be acquired from a sharing platform through the mobile client, after the vehicle enters a garage, a positioning module can establish a communication connection with the mobile client to guide the vehicle tomove to be close to the parking space, meanwhile, the intelligent parking space lock is used for identifying and matching the license plate of the vehicle, and the intelligent parking space lock is triggered to unlock. According to the intelligent parking space sharing method and system provided by the invention, the problem of being difficult to park in the existing cities is effectively relieved, the positioning accuracy in the garage is also improved, the problem that a vehicle owner cannot find a strange parking space in the garage is solved, moreover, the vehicle owner can directly scanthe two-dimensional code on the intelligent parking space lock, so that the selectable items of the vehicle owner are enriched, and the time for the parking space is reduced.