Multiple shape forming regions R1 each extending in a longitudinal direction of an absorbent article are formed in a top sheet 21 in a cross direction. In each of the shape forming regions R1, a waveform including a top area T, a bottom area B, and a wall area between the top area T and the bottom area B is continuously formed in the longitudinal direction. The fiber density of the top sheet 21 in the wall area W is set lower than the fiber density of the top sheet 21 in the top area T or the bottom area B.
