A route information display device calculates a branch point in routes to a plurality of inputted destinations, and uses the branch point to control information modes. A route information display device includes: a departure point input unit that detects a current location of the user; a multiple destination input unit that accepts input of a plurality of destinations; a route search unit that searches for respective routes from the current location to the plurality of destinations; a branch point calculation unit that calculates a branch point of the respective searched routes; and a route information display unit that displays information regarding routes to the branch point and information regarding routes beyond the branch point in different modes, wherein the route information display device supports easy comprehension of information by the user by calculating a branch point of a plurality of inputted destinations and providing information in consideration of the branch point.