To provide an underpants type absorbent article capable of efficiently utilizing contractive force of an elastic member, and suppressing leakage of excrement.SOLUTION: There is provided an underpants type absorbent article (1), in which an absorbent body (10) has an elastic member (41) which extends and shrinks in a vertical direction and which is provided on each of both side parts of a lateral direction, has an intermittent fixing part (53) for fixing a leakage prevention wall part (40) to a skin side sheet (12) on a position vertically separated from a front side end part fixing part (51) and a rear side end part fixing part (52) for fixing the leakage prevention wall part (40) on rear and front upper end parts so as not to erect. The leakage prevention wall part (40) has a tip region (402) on a tip side of the leakage prevention wall part (40) of an inside end of the intermittent fixing part (53) in a lateral direction, the elastic member (41) is arranged on only the tip region (402).SELECTED DRAWING: Figure 6【課題】弾性部材の収縮力を有効に利用し、排泄物の漏れを抑制可能なパンツ型吸収性物品を提供すること。【解決手段】パンツ型吸収性物品（１）であり、吸収性本体（１０）は左右方向の両側部にて上下方向に伸縮する弾性部材（４１）を備え、前側及び後側の上端部にて防漏壁部（４０）を起立不能に固定する前側端部固定部（５１）及び後側端部固定部（５２）と上下方向に間隔を空けた位置に、防漏壁部（４０）を肌側シート（１２）に固定する間欠固定部（５３）を有し、防漏壁部（４０）は左右方向における間欠固定部（５３）の内側端よりも防漏壁部（４０）の先端側の先端領域（４０２）を有し、弾性部材（４１）は先端領域（４０２）にのみ配置されている。【選択図】図６
