A route setting device that searches for a route to guide a plurality of electric vehicles (1A, 1B) respectively having batteries to a destination to set a travel route, the route setting device comprising: a storage means for storing group information in which the plurality of electric vehicles are set as one group, pieces of position information of charging stations capable of supplying power to the batteries of the plurality of electric vehicles and at least one of weight data of each user (A, B) who rides on the plurality of electric vehicles (1A, 1B) and information on past electricity consumption record of each user; a calculation means for calculating a travelable distance of each electric vehicle based on remaining battery capacities acquired from the plurality of electric vehicles and at least one of the weight data of each user and the information on past electricity consumption record of each user; a determination means for determining whether or not an electric vehicle having a shortest travelable distance among the plurality of electric vehicles can arrive at the destination by comparing a distance from the current location to the destination with the shortest travelable distance calculated by the calculation means; and a travel guide means for searching the travel route for a charging station at which the electric vehicle having the shortest travelable distance is capable of arriving based on the pieces of position information of the charging stations and providing guidance for a route to the destination via the charging station when it is determined by determination process of the determination means that it is difficult for the electric vehicle having the shortest travelable distance to arrive at the destination. a storage means for storing group information in which the plurality of electric vehicles are set as one group, pieces of position information of charging stations capable of supplying power to the batteries of the plurality of electric vehicles and at least one of weight data of each user (A, B) who rides on the plurality of electric vehicles (1A, 1B) and information on past electricity consumption record of each user; a calculation means for calculating a travelable distance of each electric vehicle based on remaining battery capacities acquired from the plurality of electric vehicles and at least one of the weight data of each user and the information on past electricity consumption record of each user; a determination means for determining whether or not an electric vehicle having a shortest travelable distance among the plurality of electric vehicles can arrive at the destination by comparing a distance from the current location to the destination with the shortest travelable distance calculated by the calculation means; and a travel guide means for searching the travel route for a charging station at which the electric vehicle having the shortest travelable distance is capable of arriving based on the pieces of position information of the charging stations and providing guidance for a route to the destination via the charging station when it is determined by determination process of the determination means that it is difficult for the electric vehicle having the shortest travelable distance to arrive at the destination.