Disclosed is a system for notifying information projected on a windshield, on the basis of a virtual image containing the information. The system controls a virtual image creation unit (23) so that the virtual image is displaced in at least one of a direction corresponding the advancing direction of a vehicle, a direction corresponding to a vertical direction with respect to the advancing direction, and a vehicle width direction. Moreover, the system controls a notification sound creation unit (24) so as to create a notification sound corresponding to the displacement of the virtual image.