When a map image in the periphery of a vehicle position is displayed on a liquid crystal display in 3D, POIs existing in a first searching region within a first searching distance from a current position of the vehicle are searched in an area in the vicinity of the vehicle position by setting all types of points as search targets, POIs existing in a second searching region within a second searching distance from a second searching point are searched in an area distant from the vehicle position by setting only specific types of points as search targets, and icon symbols indicating types and positions of the points are displayed on the map image while being overlapped therewith based on the searched POIs.