The purpose of the present invention is to provide a cosmetic polishing device that can be grasped with one hand to polish the stratum corneum or nails and is able to efficiently collect keratinous pieces or the like generated by polishing. The cosmetic polishing device (1) for polishing keratinous skin surfaces or nails is provided with: a substantially cylindrical polishing roller (21) having a polishing surface on at least a part of the outer peripheral surface a rotating means (23) for rotationally driving the polishing roller (21) a sucking means (30) for sucking in keratinous pieces or the like generated by polishing with the polishing roller (21) and a collecting means (40) for collecting the sucked in keratin pieces or the like.本發明提供一種研磨皮膚表面角質或指甲之美容研磨機1,其具有一研磨滾輪體21,該研磨滾輪體21呈大致圓柱狀且至少於外周面之一部份具有研磨面;一轉動手段馬達23,該轉動手段使該研磨滾輪體21轉動;一吸入手段30,該吸入手段30吸入被該研磨滾輪體21所研磨之角質等碎屑;以及一集塵手段40,該集塵手段40集塵被吸入之角質等碎屑。1‧‧‧美容研磨機10‧‧‧握持部11‧‧‧充電電池12‧‧‧切換器20‧‧‧研磨部21‧‧‧研磨滾輪體22‧‧‧隆起部23‧‧‧馬達24‧‧‧減速齒輪25‧‧‧間隙部26‧‧‧通路空間30‧‧‧吸入手段31‧‧‧離心幫浦32‧‧‧幫浦馬達33‧‧‧供氣部34‧‧‧排氣部35‧‧‧排氣部40‧‧‧集塵手段41‧‧‧集塵箱42‧‧‧過濾器50‧‧‧氣流51‧‧‧氣流52‧‧‧氣流
