The present invention makes it possible to increase the tensile stress around a waist opening on an abdomen-side part and a back-side part or the tensile stress around a leg opening, and to improve the fit around the waist and legs. An abdomen-side panel (20) of this absorbent article (1) is configured from an elastic sheet in which a first non-stretchable sheet (21), an elastic film (23), and a second non-stretchable sheet (22) are laminated. The elastic sheet has a plurality of joining opening sections formed therein, the abdomen-side panel (20) is divided into a first stretchable region (R10) and a second stretchable region (R20), the outer shape of the first stretchable region (R10) is formed by an outer edge of the abdomen-side panel (20), the second stretchable region (R20) is located inside the first stretchable region (R10) and includes most of an abdomen-side absorbent body overlapping region (FQ), the upper portion of the second stretchable region (R20) is located spaced apart from the area around the upper edge of the abdomen-side panel (20), a lower side portion of the second stretchable region (R20) is located spaced apart from the area around a lower edge of the abdomen-side panel (20), and a first tensile stress of the first stretchable region (R10) is greater than a second tensile stress of the second stretchable region (R20).La présente invention permet d'accroître la contrainte de traction autour d'une ouverture de la taille sur une partie côté abdomen et une partie côté dorsal ou la contrainte de traction autour d'une ouverture de la jambe, et pour améliorer l'ajustement autour de la taille et des jambes. Un panneau côté abdomen (20) de cet article absorbant (1) est configuré à partir d'une feuille élastique dans laquelle une première feuille non étirable (21), un film élastique (23), et une seconde feuille non étirable (22) sont stratifiés. La feuille élastique présente une pluralité de sections d'ouverture de jonction formées à l'intérieur, le p