Abstract: A map display device includes a display condition judging means 13 for judging whether or not a display condition for changing display priorities of icons is satisfied, an overlap judging means 14 for judging whether an icon to be displayed has an overlap with another icon when the display condition judging means judges that the display condition is satisfied, a display state changing means 15 for, when the overlap judging means judges that an icon to be displayed has an overlap with another icon, changing the display priorities automatically in such a way that an icon which has been judged to satisfy the display condition by the display condition judging means is displayed on a priority basis, and a display means 16 and 6 for displaying icons according to the display priorities changed by the display state changing means.