1. An object recognition device of an automotive vehicle, comprising: a positioning part detecting a position of the vehicle in accordance with a predetermined method; a positioning-accuracy computing part computing a positioning accuracy in detecting a position of the vehicle; a storing part storing beforehand positional information on an object on a road to be recognized by the vehicle; a recognition-range setting part setting a recognition range of the road of the object to be recognized, based on the position of the vehicle detected by the positioning part, a position of the object stored by the storing part, and the positioning accuracy computed by the positioning accuracy computing part; and an object recognition part recognizing the object for the recognition range set by the recognition-range setting part.