A system for supporting a user of an electrically driven vehicle comprises position information obtaining unit for obtaining, during traveling, position information indicating a position of the vehicle, electric power amount estimating unit for estimating, during traveling, a remaining electric power amount of an electric power source of the vehicle, shortage risk estimating unit for estimating, during traveling, an estimated risk of electric power amount shortage on the basis of the estimated remaining electric power amount, and notifying unit for notifying a user in case the estimated risk of electric power amount shortage estimated by the shortage risk estimating unit exceeds a predetermined threshold value.