PROBLEM TO BE SOLVED: To provide an absorbent article for a pet which hardly turns after mounted around the girth of a pet.SOLUTION: The absorbent article 1 for a pet is mounted by being wound around the girth of the pet, and includes: a liquid-permeable surface sheet 2 a liquid-impermeable back surface layer 3 and an absorbent 4 disposed between the surface sheet 2 and the back surface layer 3, and is configured in a rectangle shape having a first end part 11 and a second end part 12 which are opposite to each other, and a pair of side parts 17 perpendicular to the first end part 11 and the second end part 12 and opposite to each other, and the absorbent article is formed into a rectangular shape. The absorbent article 1 for a pet further includes: a first engaging part 7 provided on the surface sheet 2 side adjacent to the first end part 11 a second engaging part 8 provided on the back surface layer 3 side adjacent to the second end part 12 and engageable with the first engaging part 7 and an anti-slip member 91 disposed on the surface sheet 2 side adjacent to the second end part 12.COPYRIGHT: (C)2013,JPO&INPIT【課題】ペットの胴回りに装着した後に回転しにくいペット用吸収性物品を提供すること。【解決手段】液透過性の表面シート2、液不透過性の裏面層3及び表面シート2及び裏面層3の間に配置される吸収体4を備えると共に、互いに対向する第1端部11及び第2端部12と、第1端部11及び第2端部12に直交し互いに対向する一対の側部17と、を有して矩形形状に構成され、ペットの胴回りに巻きつけられて装着されるペット用吸収性物品1であって、第1端部11の近傍の表面シート2側に設けられる第1係合部7と、第2端部12の近傍の裏面層3側に設けられ第1係合部7に係合可能な第2係合部8と、第2端部12の近傍の表面シート2側に配置される滑り止め部材91と、を備える。【選択図】図1