1. A vehicle navigation system comprising: a memory device storing map data; a map matching means for matching a current position of vehicle to a road on a map utilizing the map data of the memory device; and a voice recognition means for recognizing a voice input, wherein the map matching means sets an input position specified by the voice input as the current position of the vehicle on the may when the voice input specifying the input position is inputted by a user and recognized by the voice recognition means.