PROBLEM TO BE SOLVED: To provide an absorbent article suitably receiving urine or the like excreted from a wearer by an auxiliary absorber when using the auxiliary absorber as well, and capable of preventing lateral leak of urine or the like.SOLUTION: An absorbent article 1 includes: an absorber 2 having a cross direction and a width direction, and having a top sheet 3, a back sheet 4, and an absorbent core 5 arranged therebetween; a first flap 6 provided on the skin side surface of the absorber 2 so as to extend in the cross direction; and a second flap 9 provided on the skin side surface of the absorber 2 so as to extend in the cross direction. The first flap 6 is provided on each of both sides of a center line C in the width direction of the absorber 2, is provided with a first elastic member 7 extending in the cross direction, and is formed so as to incline outward in the width direction. The second flap 9 is each provided outward in the width direction of the first flap 6, and is provided with a second elastic member 10 extending in the cross direction.【課題】補助吸収体を併用した際に、着用者から排泄された尿等を補助吸収体で好適に受け、尿等の横漏れを防ぐことができる吸収性物品を提供する。【解決手段】前後方向と幅方向を有し、トップシート3とバックシート4とこれらの間に配された吸収性コア5を有する吸収体2と、吸収体2の肌側面に前後方向に延びるように設けられた第1フラップ6と、吸収体2の肌側面に前後方向に延びるように設けられた第2フラップ9を有する吸収性物品1であって、第1フラップ6は、吸収体2の幅方向の中心線Cの両側にそれぞれ設けられ、前後方向に延びる第1弾性部材7が設けられ、幅方向の外方に傾倒するように形成され、第2フラップ9は、第1フラップ6の幅方向の外方にそれぞれ設けられ、前後方向に延びる第2弾性部材10が設けられている。【選択図】図2