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 being characterized by 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), and one of the first sheet layer (12S) and the second sheet layer (12H) is a low-adhesion nonwoven fabric for which the peel strength of the hot melt adhesive is lower than for the other.本發明所要解決的問題在於提供一種吸收性物品的伸縮結構，其能夠防止因意外的黏合所導致的褶皺的外觀惡化。為了解決此問題，本發明的吸收性物品的伸縮結構，具備：第一片層12S，其由不織布所構成；第二片層12H，其由與此第一片層12S的其中一面相對向之不織布所構成；及，複數根細長狀的彈性伸縮構件19，其以沿著伸縮方向且互相隔開間隔的方式被設置在這些第一片層12S與第二片層12H之間；其中，第一片層12S和第二片層12H具有藉由熱熔黏合劑接合而成的片接合部70，該熱熔黏合劑以在彈性伸縮構件19的長度方向上為間歇性且在與彈性伸縮構件19交叉的方向上細長地連續的條紋狀圖案進行配置，並且，第一片層12S和第二片層12H的任一方被設為低黏合性不織布，該低黏合性不織布的熱熔黏合劑的剝離強度比另一方更低。
