A vehicle allocation system comprising: at least two autonomous vehicles (40A, 40B); a mobile terminal; and a control center configured to communicate with the at least two autonomous vehicles and the mobile terminal via a network, wherein the control center includes a vehicle allocation control unit configured to receive a vehicle allocation request from the mobile terminal and to allocate an autonomous vehicle among the at least two autonomous vehicles to a position which is designated in the vehicle allocation request, and a vehicle reallocation control unit configured to allocate another autonomous vehicle among the at least two autonomous vehicles to a current position of the currently allocated autonomous vehicle when a vehicle replacement request has been received from the mobile terminal after the allocation has been completed, characterized in that the control center further includes: a database configured to store an assessment value of each of a plurality of users; and a user assessing unit configured to increase or decrease the assessment value for a user depending on a usage state of an autonomous vehicle among the at least two autonomous vehicles for the user, and to determine a usage fee for each user depending on the assessment value. at least two autonomous vehicles (40A, 40B); a mobile terminal; and a control center configured to communicate with the at least two autonomous vehicles and the mobile terminal via a network, wherein the control center includes a vehicle allocation control unit configured to receive a vehicle allocation request from the mobile terminal and to allocate an autonomous vehicle among the at least two autonomous vehicles to a position which is designated in the vehicle allocation request, and a vehicle reallocation control unit configured to allocate another autonomous vehicle among the at least two autonomous vehicles to a current position of the currently allocated autonomous vehicle when a vehicle replacement request has been received from the mobile terminal after the allocation has been completed, a vehicle allocation control unit configured to receive a vehicle allocation request from the mobile terminal and to allocate an autonomous vehicle among the at least two autonomous vehicles to a position which is designated in the vehicle allocation request, and a vehicle reallocation control unit configured to allocate another autonomous vehicle among the at least two autonomous vehicles to a current position of the currently allocated autonomous vehicle when a vehicle replacement request has been received from the mobile terminal after the allocation has been completed, characterized in that the control center further includes: a database configured to store an assessment value of each of a plurality of users; and a user assessing unit configured to increase or decrease the assessment value for a user depending on a usage state of an autonomous vehicle among the at least two autonomous vehicles for the user, and to determine a usage fee for each user depending on the assessment value. a database configured to store an assessment value of each of a plurality of users; and a user assessing unit configured to increase or decrease the assessment value for a user depending on a usage state of an autonomous vehicle among the at least two autonomous vehicles for the user, and to determine a usage fee for each user depending on the assessment value.