An absorbing article provided with an absorber kept in contact with the excreting portions of a body when it is worn and deformed to prevent leakage of excrements. A disposable diaper (1) comprising a chassis (2), an inseam (23), an absorber (4), and an elastic member extending along the side edge in the width direction of the inseam. The oblong absorber (4) disposed in the inseam comprises a first small width portion, a second small width portion, a central low-rigidity portion formed to extend along the center line bisecting the disposable diaper (1) in the width direction, and a pair of sideward low-rigidity portions formed almost equidistantly on the opposite sides in the width direction of the central low-rigidity portion and the inseam (23) is provided with a skin contacting surface side sheet and a skin non-contacting surface side sheet, with the skin contacting surface side sheet being lower in initial strength than the skin non-contacting surface side sheet or the chassis (2) when stretched.