PROBLEM TO BE SOLVED: To provide an absorbent body which is excellent in flexibility and compression recovery property and can improve wearing feeling when applied to the absorbent article, and an absorbent article using the absorbent body. SOLUTION: The absorbent core 40 that constitutes the absorbent body 4 of the present invention includes a fiber mass 11 and a water absorbent fiber 12F. The fiber mass 11 includes weakly water-absorbent fibers 11F having a lower water absorbency than the water-absorbent fibers 12F. The fiber lumps 11 are entangled with each other or with the fiber lumps 11 and the water-absorbent fibers 12F. The fiber mass 11 includes two opposing basic surfaces 111 and a skeleton surface 112 connecting the two basic surfaces 111. The absorber 4 (absorbent core 40) has a compressive strain rate of 66% or more and a recovery work amount of 235 mN·cm/cm 2 or more. [Selection diagram] Figure 2【課題】柔軟性及び圧縮回復性に優れ、吸収性物品に適用された場合には着用感を向上させ得る吸収体、並びに該吸収体を用いた吸収性物品を提供すること。【解決手段】本発明の吸収体４を構成する吸収性コア４０は、繊維塊１１と吸水性繊維１２Ｆとを含む。繊維塊１１は、吸水性繊維１２Ｆより吸水性の低い弱吸水性の繊維１１Ｆを含む。繊維塊１１同士又は繊維塊１１と吸水性繊維１２Ｆとが交絡している。繊維塊１１は、２つの対向する基本面１１１と、該２つの基本面１１１を連結する骨格面１１２とを備えている。吸収体４（吸収性コア４０）は、圧縮ひずみ率が６６％以上であり、回復仕事量が２３５ｍＮ・ｃｍ／ｃｍ２以上である。【選択図】図２
