This sheet (1) for an absorbent article comprises a plurality of absorbent units (4), each of which includes an elongate base part (2) and water-absorbent polymer particles (3) fixed to a surface of the elongate base part (2). The sheet (1) is formed by arranging the absorbent units (4) such that the longitudinal directions thereof all face in the one direction. Before the water-absorbent polymer particles (3) absorb liquid, the water-absorbent polymer particles (3) are disposed to the inside of both side edges (2s) extending in the longitudinal direction of the elongate base parts (2). When the water-absorbent polymer particles (3) absorb liquid, the water-absorbent polymer particles (3) expand beyond the side edges (2s) extending in the longitudinal direction of the elongate base parts (2), and the positions of the elongate base parts (2) in the thickness direction thereof are different to the positions thereof before the absorption of liquid.本發明之吸收性物品用片狀物(1)具備複數條吸收性單元(4)，該吸收性單元(4)具備長條狀基體部2及固定於長條狀基體部(2)之一面之表面之吸水性聚合物粒子(3)。片狀物(1)係使各吸收性單元(4)以其縱向朝向一方向之方式排列而成。於吸水性聚合物粒子(3)吸收液體之前，吸水性聚合物粒子(3)配置於長條狀基體部2之較沿縱向之兩側緣部(2s)靠內側。若吸水性聚合物粒子(3)吸收液體，則吸水性聚合物粒子(3)越過長條狀基體部(2)之沿縱向之側緣部(2s)而膨潤，且長條狀基體部(2)之位置於厚度方向上與吸收液體之前之位置不同。
