A route searching apparatus includes a map data acquiring unit for acquiring map data defined by nodes and road links, a route searching unit for searching for a route to a destination in consideration of road links corresponding to specific roads, on which determination of whether or not a vehicle is allowed to travel can be performed according to a condition of the vehicle before the condition of the vehicle is set, the road links being included in the map data acquired by the map data acquiring unit, and an output unit for outputting the route searched for by the route searching unit.