PROBLEM TO BE SOLVED: To provide an absorbent article with less leakage of urine or the like from the sides.SOLUTION: An absorbent article 1 includes a top sheet 2, a back sheet 3, and an absorbent laminate 10 provided therebetween. The top sheet 2 is provided with standing flaps 5 on both sides in the width direction x. The absorbent laminate 10 includes a main absorber 11 and auxiliary absorbers 21 provided to the surface of the main absorber 11 adjacent to the top sheet 2. The auxiliary absorbers 21 are disposed on both sides of the main absorber 11 in the width direction x such that the auxiliary absorbers 21 overlap with respective bases 6 from which the standing flaps 5 stand. The auxiliary absorbers 21 each include a plurality of layers of sheet members and a water-absorbent resin between sheet members and do not contain pulp fibers. The auxiliary absorbers 21 each have sealed portions on both sides in the width direction x, in which the sheet members are bonded to each other, and an unsealed portion disposed between the sealed portions. The unsealed portions of the auxiliary absorbers 21 are provided with a water-absorbent resin having a water absorption rate (vortex method) of 20 seconds or lower.COPYRIGHT: (C)2015,JPO&INPIT【課題】尿等の横漏れが起こりにくい吸収性物品を提供する。【解決手段】トップシート2とバックシート3とこれらの間に設けられた吸収性積層体10を有する吸収性物品1であって、トップシート2の幅方向xの両側に立ち上がりフラップ5が設けられ、吸収性積層体10は、主吸収体11と、主吸収体11のトップシート2側に設けられた補助吸収体21を有し、補助吸収体21は、立ち上がりフラップ5の立ち上がる起点となる基部6と重なるように、主吸収体11の幅方向xの両側にそれぞれ設けられ、補助吸収体21は、複数層のシート部材を含み、シート部材の間に吸水性樹脂を有しパルプ繊維を有しないように構成され、幅方向xの両側にシート部材どうしが接合された封止部と、封止部の間に形成された非封止部を有し、補助吸収体21の非封止部に、ボルテックス法による吸水速度が20秒以下である吸水性樹脂が配されている。【選択図】図2