The invention provides an intelligent parking space searching method of an unmanned automobile. The intelligent parking space searching method comprises the steps that firstly, the unmanned automobile receives a parking instruction, and the unmanned automobile sends the received parking instruction, geographical location information of the automobile and vehicle information of the unmanned automobile to a background server; the background server analyzes the received information and performs matching analysis on information of an empty parking space with the shortest path; if the matching is successful, the process gets to the next step, otherwise, empty parking space matching is continued to be performed until the matching is successful; the background server sends planned route information to the unmanned automobile, and the unmanned automobile receives the information and reaches the specified parking space; and the unmanned automobile sends parking completion information to the background server after reaching the specified parking space, and the background server starts time-based billing. The beneficial effects are reflected in that a vehicle can automatically search a parking space after people depart from the vehicle, the time spent on searching a parking space of people onboard is saved, and the time is better saved.