PROBLEM TO BE SOLVED: To provide an assembling method of a cats claw sharpener in which the stability at the time when a cat gets on the upper surface of a claw sharpening part is high, and the cat is easy to put a neck on the upper surface.SOLUTION: An assembling method of a cats claw sharpener comprising the operation from (a) to (c) in the following includes: a cats claw sharpening part being a three-dimensional shape article formed of a disk shape article of a layered structure spirally wound up centering on one end of a belt-shaped single faced corrugated board a holding stand capable of holding an outer circumferential surface of the claw sharpening part in an upper inner circumferential surface and a holding part disposed in the holding stand, and comprising a holding plate for holding a three-dimensional shape article from the bottom side as a reversing wooden bowl shape or a wooden bowl shape. A layered surface slips off downward by (a) disposing the holding plate in the holding stand, (b) placing a disk shape article on the upper part of the holding plate disposed, and (c) pressing the center side or the outer circumferential side downward from the upper surface of the disk shape article. Thereby, the claw sharpening part is formed which is the reversing wooden bowl shape body or the wooden bowl shape body. Thus, the cats claw sharpener is assembled.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2018,JPO&INPIT【課題】猫が爪研ぎ部の上面に乗るときの安定性が高く、かつ猫が該上面に首を乗せ易い猫の爪研ぎ器の組立方法を提供する。【解決手段】帯状の片面段ボールの一端を中心にして渦巻状に巻かれた、積層構造の円盤状物から形成される立体形状物である猫の爪研ぎ部と、上部内周面に爪研ぎ部の外周面を保持可能な保持台と、該保持台内に配置されて、前記立体形状物を逆お椀形状又はお椀形状としてその下面側から保持する、保持板からなる保持部とを備えた、以下の(a)から(c)の操作を含む猫の爪研ぎ器の組立方法。(a)保持台内に保持板を配置し、(b)配置した保持板の上部に円盤状物を載せ、(c)円盤状物の上面から中央側又は外周側を下方に押し込むことにより、積層面が下方にずれることにより形成される爪研ぎ部が逆お椀形状体又はお椀形状体である猫の爪研ぎ器を組立てる。【選択図】図1