An absorbent article provided with a longitudinal direction, a width direction and a thickness direction comprises a main body portion. The main body portion provided with an absorbent core comprises a ventral part, a buttock lower part and a back side part which are arranged in the longitudinal direction. The disclosed absorbent article is characterized in that a back side end part located in the longitudinal direction of the main body is configured with a waistline elastic member extended in the width direction a part of the main body portion located closer to an inner side in the longitudinal direction than the back side end part is existed with the absorbent core and a part located between the waistline elastic member and the absorbent core of the main body portion is served as a non-existing part where the waistline elastic member and the absorbent core do not exist and in the main body portion, sheet-shaped stereoscopic frill forming parts are intervally disposed along the longitudinal direction in the width direction. In the stereoscopic frill forming parts disposes, stereoscopic frills are configured along the longitudinal direction by elastic members, and a base end part and a standing part configured in the width direction, in which the base end part cannot stand, and the standing part can stand upright towards a skin side in the thickness direction by taking the base end part as a support. By contracting the standing parts in the longitudinal direction, the standing parts are made upright towards the skin side in the thickness direction. Fixing parts formed at the longitudinal end parts in the standing part are utilized to fix the end parts of the standing part in a state of overlapping the main body portion, and the longitudinal inside end part of the fixing part is located further outside than the absorbent core. A back side wing formed on the back side of the main body portion is extended from the main body portion outwardly toward the width direction.
