To provide a hair holder preventing the formation of ununiform and polygonal wave caused by strain between an inner sheet and an outer sheet without especially prescribing the elasticity and taper strength of the sheet.

This hair holder comprises stacked two belt-shaped sheets 3 and 4 and the hair can be inserted between the both belt-shaped sheets 3 and 4. One belt-shape sheet 4 is longitudinally movably held relative to the other belt-shaped sheet 3 for keeping the stacked state of the both belt-shaped sheets 3 and 4.