An absorbent article for pet includes: a top sheet a back surface layer an absorbent core a first end portion and a second end portion opposing to each other in alongitudinal direction a first side portion and a second side portion opposing to each other in a width direction an engaging member disposed in the vicinity of the first end portion along the width direction of the absorbent article a first engaged portion engageable with the engaging member and is disposed in the vicinity of the second end portion, at least at a position faceable a central portion of the engaging member and a second engaged portion engageable with the engaging member with an engagement force smaller than an engagement force of the first engaged portion with the engaging member, and is disposed at least at a position faceable one of opposite ends of the engaging member.【解決手段】ペット用吸収性物品は、表面シートと、裏面層と、吸収体と、長手方向に対向する第1端部及び第2端部と、幅方向に対向する第1側部及び第2側部と、前記吸収性物品の幅方向に沿って、前記第1端部の近傍に配置される係合部材と、第2端部の近傍であって、少なくとも前記係合部材の長手方向の中央部に対向可能な位置に配置され、係合部材に係合可能な第1被係合部と、少なくとも係合部材の長手方向の一方の端部に対向可能な位置に配置され、第1被係合部の係合部材に対する係合力よりも弱い係合力で係合部材に係合可能な第2被係合部と、を有する。【選択図】図1
