To improve ease of seeing of a wide area map and a detail map around a position of an own car that are displayed on a screen.

This map display device of the navigation device comprises a present position detecting part for detecting a present position of a vehicle, a map storing part for storing a plurality of map data with different scale, a display part, and a control part. The control part retrieves a wide area map A and a detail map B that include the present position of the vehicle from the map storing part, the wide area map A is displayed on the entire screen of the display part, and the detail map B for displaying an expanded view of a predetermined peripheral part of the vehicle V is displayed on the wide area map A.