A vehicle surroundings monitoring device carries out a position mapping process of expressing a positional relationship in the detection ranges of distance sensors 2 for detecting an obstacle 100 by coordinates on a camera image captured by a camera unit 3 having an image capture range in the surroundings of a vehicle, derives transformation parameters used for carrying out a mapping transformation in such a way that the obstacle detected by the distance sensors 2 is placed at a predetermined position on the camera image on which the position mapping process has been carried out, and carries out an image transformation on the camera image by using the transformation parameters in such a way that the obstacle is placed at the predetermined position.