To provide an obstacle information display device which makes a driver recognize the existence of an obstacle even if the driver forgets the existence of the obstacle irrespective of a display processing at a blind corner, which immediately starts a brake operation when the obstacle is viewed and can decelerate a vehicle on the safe side.

When the obstacle cannot be viewed at display timing equivalent to a deceleration distance (L≤Lp), a change display processing is performed at display timing equivalent to the distance of vision, which is just before the viewing of the obstacle in addition to the regular display processing of display timing equivalent to the deceleration distance. Even if the existence of the obstacle is forgotten, the driver is caused to recognize the existence of the obstacle by the switching of the display processing. At the point of time when the obstacle is viewed (point c), the brake operation is immediately started.