This absorbent article (1) has, in a ventral part and/or a dorsal part, a stretching part (G) that stretches in the transverse direction (Y) of the article. The stretching part (G) has an outer layer sheet (22) disposed away from the wearer's skin, an inner layer sheet (23) disposed closer to the wearer's skin than the outer layer sheet (22), and a plurality of elastic members (24) disposed therebetween in the stretched state in the transverse direction (Y) of the article. The outer layer sheet (22) and the inner layer sheet (23) are bonded at bonding parts (26) whereat the sheets are partially bonded. The bonding parts (26) are placed between non-bonding parts (36) in which the outer layer sheet (22) and the inner layer sheet (23) are not continuously bonded in the longitudinal direction of the article or the transverse direction of the article. The bonding parts (26) and the non-bonding parts (36) are repeatingly arranged in the longitudinal direction of the article or the transverse direction of the article. As the elastic members (24) contract, the outer layer sheet (22) is deformed to bulge towards the non-skin facing side, thereby forming a plurality of pleats (29) along the longitudinal direction (X) of the article or the transverse direction (Y) of the article. In the absorbent article (1), the pleats (29) formed by the outer layer sheet (22) have openings at positions overlapping the elastic members (24) in the thickness direction, the openings penetrating the outer layer sheet (22).L'invention concerne un article absorbant (1) qui comprend, dans une partie ventrale et/ou une partie dorsale, une partie d'étirement (G) qui s'étire dans la direction transversale (Y) de l'article. La partie d'étirement (G) comprend une feuille de couche externe (22) disposée à l'opposé de la peau du porteur, une feuille de couche interne (23) disposée plus près de la peau du porteur que la feuille de couche externe (22), et une pluralité d'éléments élastiques (24) disposés ent
