[Problem] To provide a disposable diaper which is comfortable to wear. [Solution] This disposable diaper comprises a top sheet (1), a back sheet (2), an absorber (3) and a stretchable sheet (4). The stretchable sheet (4) is composed by having a base material sheet (41) sandwich multiple elastic stretchable members (42) disposed therein in an extended state, said multiple elastic stretchable members (42) being disposed along the width direction of the disposable diaper and spaced apart at intervals in the longitudinal direction. When viewed in the width direction, the stretchable sheet (4) has an overlapping portion (43) which includes a region that overlaps with a part of the absorber (3). In the overlapping portion (43), the multiple elastic stretchable members (42) are disposed continuously along the width direction. The multiple elastic stretchable members (42) are not joined to the sides of the base material sheet (41) at the central region (43a) of the overlapping portion (43), said central region (43) being where part of the absorber (3) is overlapped, and are joined to the sides of the base material sheet (41) at the side regions (43b) of the overlapping portion (43) which are positioned to the outside of the central region (43a) in the width direction.【課題】装着感に優れた使い捨ておむつを提供する。【解決手段】本おむつはトップシート1、バックシート2、吸収体3、伸縮シート4を備える。伸縮シート4は、基材シート41の間に、使い捨ておむつの幅方向に沿って、長さ方向に間隔を置いて、複数の弾性伸縮部材42を伸長状態で配置することにより構成されている。伸縮シート4は、幅方向にみたときに、吸収体3の一部と重畳する領域を含む重畳部分43を有する。複数の弾性伸縮部材42は、重畳部分43において、幅方向に沿って連続的に配置されている。複数の弾性伸縮部材42は、重畳部分43のうち吸収体3の一部と重畳する中央領域43aにおいては、基材シート41の間に接合されておらず、重畳部分43のうち中央領域43aの幅方向の外側に位置する側方領域43bにおいては、基材シート41の間に接合されている。【選択図】図1
