The invention discloses a parking guiding system which is mainly composed of a large vehicle parking area, a rest area, a medium vehicle parking area, a small vehicle parking area, a new energy vehicle parking area, a license plate recognition module, a multi-stage parking space guidance display screen, a geomagnetic parking space detection module and a central control room. According to the parking guiding system, various vehicles can be parked in different areas, and classified parking of the vehicles is facilitated; vehicles entering a service area are guided in a classified mode and accurately guided to the designated parking areas, the phenomenon that the vehicles are parked and placed disorderly in the service area is effectively reduced, meanwhile, potential safety hazards caused by disorderly parking and placing of the vehicles are avoided, the management pressure of service area managers on the service area is relieved, the service image of the service area is improved, normal access of vehicles is ensured, collision between the vehicles caused by disorder is avoided, and unnecessary economic losses are reduced; and the information of vehicles entering the service area can be collected and stored, and vehicle management is more convenient.