Abstract: In order to enable the user to intuitively and easily perform an operation of changing the display of a map thereon while maintaining the viewability of the map, a map information processing device in accordance with the present invention includes a display unit for displaying a map, a three-dimensional input unit for detecting a three-dimensional position of an object to be detected with respect to a display surface of the display unit, and a control unit for displaying a map having the same display center as an original display position with a scale according to the distance between the object to be detected which is detected by the three-dimensional input unit and the display surface on the display unit.