PROBLEM TO BE SOLVED: To provide a beauty instrument which, in the state of fitting along a curvilinear surface part of a human body, can give rotary stimulation, while possessing robust rigid impression.SOLUTION: A beauty instrument comprises a plurality of rotary bodies 14 which are rotationally driven around parallel shafts. On each rotary body 14, at least one of pressing bodies 15 giving rotary stimulation to a skin surface is provided. The rotary body 14 is attached to a driving shaft 20. The adjacent driving shafts 20, as a couple, are supported by a frame 51 so as to be freely rotatable. The adjacent rotary body 14 and the frame 51 can rotate around the driving shaft 20 in the adjacent other end. On each driving shaft 20, a passive gear 21 which transmits rotation to the rotary body 14 is provided. A driving mechanism 13 includes the passive gear 21 and a counter gear 22 which is arranged between the adjacent passive gears 21 and engagingly moves by linkage. The rotary axial center of the passive gear 21 and the axial center P of the driving shaft 20 are matched.
