A disposable diaper (1) has a waist opening portion and a pair of leg opening portions and contains an absorbent body including a topsheet and an absorbent core. The absorbent core (4) is composed of a central absorbent member (41) and a pair of side absorbent members (42) disposed on both sides of the central absorbent member (41). The central absorbent member (41) is discrete from the side absorbent members (42) in at least the crotch portion (C). Each side absorbent member has a raising elastic member which is provided near its outboard edge along the longitudinal direction, so that the side absorbent member (42) rises while worm. The diaper is configured to exert a higher wearing pressure in its regions (91) that are to be applied to a wearer's body part between the iliac crests and the anterior superior iliac spines than in its waist opening portion while worn.