To provide an underpants type absorbent article having even and high color development, and an external appearance like an underwear, excellent in aesthetic property.SOLUTION: An underpants type absorbent article is such that: an exterior body is composed of a composite elastic sheet obtained by integrating two nonwoven fabrics with an elastic film arranged between the two nonwoven fabrics by a plurality of deposition points 36a； the exterior body has a plurality of lines in which the plurality of deposition points 36a are aligned in a direction Y orthogonal to an extraction and contraction direction X of the composite elastic sheet； the plurality of lines comprise first lines A and second lines B arranged alternately at equal intervals； a distance Lx between the deposition points 36a in the extraction and contraction direction X of the first line A is 2 mm or less； a deposition point 36b of the second line B is arranged so as to bisect an interval between the two deposition points 36a arranged in the Y direction of the first line A； the nonwoven fabric at a non-skin contact surface side in the two nonwoven fabrics has a clarity of 60% or more and 85% or less, and a basis weight of 10 g/mor more and 20 g/mor less； and the elastic film has a brightness of 70% or less and a basis weight of 20 g/mor more and 40 g/mor less.SELECTED DRAWING: Figure 5【課題】発色性が均一でかつ高く、美粧性に優れた下着らしい外観を有するパンツ型吸収性物品を提供する。【解決手段】外装体が、２枚の不織布と２枚の不織布の間に配置された伸縮性フィルムとが複数の溶着点36aによって一体化された複合伸縮シートで構成され、外装体が、複数の溶着点36aが複合伸縮シートの伸縮方向Ｘと直交する方向Yに配列されてなる列を複数有し、複数の列が第一の列Aと第二の列Bとが交互に等間隔で配置されてなり、第一の列Aの伸縮方向Xの溶着点36a間の距離Ｌｘが2mm以下であり、第二の列Bの溶着点36bが、第一の列AのY方向に配置された２つの溶着点36aの間を二等分するように配置されており、２枚の不織布のうち非肌当接面側の不織布が、60%以上85%以下の透明度及び10ｇ／ｍ２以上20ｇ／ｍ２以下の目付を有し、伸縮性フィルムが70%以下の明度及び20ｇ／ｍ２以上40ｇ／ｍ２以下の目付を有するパンツ型吸収性物品とする。【選択図】図５
