1. A vehicle surrounding confirmation apparatus comprising: a narrow-field-of-view image generating portion generating a narrow-field-of-view image, showing a portion of a vehicle surrounding, from a captured image of the vehicle surrounding obtained by an image capturing portion; an obstacle recognizing portion recognizing an obstacle existing at the vehicle surrounding; a determining portion determining whether or not the obstacle, recognized by the obstacle recognizing portion, is included within the narrow-field-of-view image; an obstacle image extracting portion extracting an area, in which an image of the obstacle is shown, from the captured image as an obstacle image, when the obstacle, recognized by the obstacle recognizing portion, is not determined to be included within the narrow-field-of-view image, based on a determination result of the determining portion; and a display image generating portion generating a display image from the narrow-field-of-view image and the obstacle image, thereby outputting the generated display image to a monitor.