PROBLEM TO BE SOLVED: To provide an underpants type absorbent article which can be maintained in a folded state in packaging time, and which can be easily expanded in use time.SOLUTION: An underpants type absorbent article (1) comprises a vertical direction, a lateral direction and a cross direction, and comprises: a belt part (32) for forming at least a part of a waist opening, along the lateral direction； and an absorbent body (10) whose both end parts are connected to the belt part (32) along the vertical direction, when it is packaged by the packaging material, it is folded at a prescribed fold position F2 in the vertical direction, and the absorbent body (10) is folded from a lower side to an upper side of the vertical direction. On the fold position F2, one side part (10f) positioned on one side of the cross direction of the absorbent body (10) and the other side part (10b) positioned on the other side of the cross direction of the absorbent body, have a part where rigidity is different, respectively.SELECTED DRAWING: Figure 8COPYRIGHT: (C)2018,JPO&INPIT【課題】包装時において折り畳み状態が維持されやすく、使用時において容易に展開することが可能なパンツ型吸収性物品を提供する。【解決手段】上下方向と左右方向と前後方向とを有し、前記左右方向に沿い、胴回り開口の少なくとも一部を構成するベルト部（３２）と、前記上下方向に沿い、両端部が前記ベルト部（３２）に接続された吸収性本体（１０）と、備え、包装材で包装される際には、前記上下方向における所定の折り曲げ位置Ｆ２にて折り曲げられ、前記吸収性本体（１０）が、前記上下方向の下側から上側に向けて折り返されるパンツ型吸収性物品（１）であって、前記折り曲げ位置Ｆ２において、前記吸収性本体（１０）のうちの前記前後方向の一方側に位置する一方側部分（１０ｆ）と、前記吸収性本体のうちの前記前後方向の他方側に位置する他方側部分（１０ｂ）は、互いに剛性が異なる部分を有する。【選択図】図８
