The invention provides a disposable diaper not impairing wearing qualities even if a feces receiver is deep. The disposable diaper (1) has a front waist region (6), a back waist region (7), and a crotch region (8). The crotch region (8) is segmented into a front region (51), a back region (52), and an intermediate region (53) by both a section (32) for guiding forward bending and a section (33) for guiding backward bending. The guiding sections (32, 33) extend in parallel with each other in the lateral direction of the diaper (1). A pair of contraction means (61) is placed on the inner surface side of the crotch region (8), and the contraction means (61) extend spaced from and in parallel with each other in the front-back direction. Front sections (28) of the pair of contraction means (61) are fixed to the inner surface side of the diaper (1), on the front side of line D-D bisecting the front-back direction of the intermediate region (53), and back regions (29) of the pair of contraction means (61) are fixed to the inner surface of the diaper (1), on the back side of the intermediate region (53). An intermediate section (31) is adapted to separate from the inner surface of the diaper (1) to enable elastic contraction in the front-back direction.