When lane change from a cruising lane to an overtaking lane or an opposing lane is determined to be performed for avoiding such an obstacle, the display control unit 5 of the vehicle image display system 1 is instructed to display prior notice of the lane change. The display control unit 5 obtains image data necessary for displaying prior notice of lane change from the display information storing unit 6, generates display images through necessary processes, and displays the images at the first and second display devices 3, 4.