PROBLEM TO BE SOLVED: To provide an absorbing article making skin fitting excellent and preventing a stain caused by menstrual blood.SOLUTION: A folding line RL of a wing shaped flap W is formed so as to be located closer to the center side of a width direction of a sanitary napkin 1 than the outer edge in a width direction of a standing gather BS. The wing shaped flap is composed of a laminated structure of a liquid-impermeable back sheet 2 on a back surface side and side nonwoven cloth 7 on a surface side, and a surface layer extending part 10 in which the side nonwoven cloth 7 extends on an outer side than the liquid-impermeable back sheet 2 at least in both edges of the folding line RL and in the vicinity thereof.