The present invetion prevents a hole cover from suppressing impact absorption performance by an impact force transmission member. The hole cover 20 for receiving a projection part 11a of the upper impact absorption member 11 comprises upper and lower cover members 22, 23 of the shape divided to upper and lower sides. The upper cover member 22 is constituted by a film-like plastic molded product. The lower cover member 23 is constituted by a plastic molded product having relatively thick thickness similarly to a conventional one. The lower cover member 23 is overlapped to a mounting position of a door latch mechanism part 10a and a latch release cable 32a and a harness 32b for auto closure, i.e., wiring parts are extended to the door latch mechanism part 10a through an insertion hole 31a of the lower door cover 23.