To provide an on-vehicle map display device which displays a map, excluding the display of a road through which passing is inhibited, depending on conditions on the vehicle side such as a articles mounted and the like, or carries out map display, while distinguishing the road from others so that the road can be recognized to be impassable, and to provide a navigation system which presents a route up to the destination, while excluding the road through which the passing is inhibited, depending on the conditions on the vehicle side such as the articles mounted matter and the like.

By acquiring information related to vehicles, including at least information about the articles mounted, and taking into account the acquired vehicle relevant information, when an underwater tunnel A or a bridge B, as shown in (a), (b) and (c) of the Figure, wherein passage criteria are changed based on the conditions on the vehicle side, the road through which own vehicle is inhibited from passing is not displayed on the map, or the map can be displayed, while distinguishing the road from others. Furthermore, the route, up to the destination, can be set so as to exclude the road through which own vehicle is inhibited from passing through.