PROBLEM TO BE SOLVED: To provide an absorbent article capable of rapidly absorbing urine or the like.SOLUTION: In the absorbent article 1 having a liquid permeable top sheet 2, a liquid impermeable back sheet 3 and the absorbent core 4 provided between both sheets, the absorbent core 4 has an opening 5 and a diffusion layer 6 made of a nonwoven fabric is provided between the absorbent core 4 and the back sheet 3, and the diffusion layer 6 has the receiving part 6A superposed on the opening 5 and a transfer part 6B not superposed on the opening 5 and the receiving part 6A is thicker than the transfer part 6B.
