A map information distribution system carries out a search based on search criteria that is input from a first terminal device, outputs predetermined map information for displaying search results to the first terminal device, causes the first terminal device to display a map based on the map information for displaying search results, and distributes predetermined map information for distribution in response to a distribution request. This map information distribution system includes a discrimination information outputting unit that outputs discrimination information to the first terminal device, and causes the first terminal device to display a discrimination indication based on the discrimination information before the map information for distribution is distributed. The discrimination information is designed to distinguish the area that can be displayed by a second terminal device that can use the map information for distribution, from the other portions in the map displayed by the first terminal device based on the map information for displaying search results.