The present invention prevents the worsening of an appearance of folding caused by unintended adhesion. An expanding/contracting structure of an absorbent article, said expanding/contracting structure comprising: a first sheet layer (12S) that comprises a nonwoven fabric； a second sheet layer (12H) that comprises a nonwoven fabric and faces one surface of the first sheet layer (12S)； and a plurality of long, narrow elastic expanding/contracting members (19) that are provided between the first sheet layer (12S) and the second sheet layer (12H), along an expanding/contracting direction and with gaps between one another, wherein the first sheet layer (12S) and the second sheet layer (12H) have sheet bonding sections (70) that are bonded via a hot melt adhesive that is arranged intermittently in a lengthwise direction of the elastic expanding/contracting members (19), in a pattern of long, narrow stripes extending in a direction that intersects the elastic expanding/contracting members (19), one of the first sheet layer (12S) and the second sheet layer (12H) comprises a spunbond nonwoven fabric and the other comprises an air-through nonwoven fabric, and the air-through nonwoven fabric has a raised nap on a surface that is on the spunbond nonwoven fabric side thereof.La présente invention empêche l'aggravation de l'aspect de pliage provoqué par une adhésion non souhaitée. L'invention concerne une structure d'étirement/de contraction d'un article absorbant, ladite structure d'étirement/de contraction comprenant : une première couche de feuille (12S) qui comprend un textile non tissé ； une seconde couche de feuille (12H) qui comprend un textile non tissé et qui fait face à une surface de la première couche de feuille (12S) ； et une pluralité d'éléments d'étirement/de contraction élastiques étroits et longs (19) qui sont situés entre la première couche de feuille (12S) et la seconde couche de feuille (12H), dans le sens d'étirement/de contraction et avec des espaces entre e
