To provide a system for automatically allocating vehicles, having a means for allocating the vehicles based on a residence time at a proper area of a mobile station (vehicle), and designating the retrieving order of the candidate vehicles based on the order of residence times or the order of distances from a customer present position corresponding to the area.

A vehicle allocation rule determining part 16 determines a specific vehicle allocation rule among a plurality of kinds of vehicle allocation rules, as a determined vehicle allocation rule, and writes the determined vehicle allocation rule on a vehicle allocation rule table, a vehicle condition management part 14 acquires the positional information, the information on vehicle condition, and the information on residence time of each vehicle transmitted from each vehicle, and writes the same onto a vehicle condition table, and a vehicle retrieving part 15 selects a specific vehicle as the allocated vehicle in accordance with the determined vehicle allocation rule recorded on the vehicle allocation rule table based on the customer present position, and the positional information, the information on vehicle condition and the information on residence time of each vehicle recorded on the vehicle condition table.