To provide an absorbent body comprising a water absorbent resin powder fixed on a base material by a resin and having excellent water absorbent resin powder supporting property. The present invention provides an absorbent body comprising: a base material and a water absorbent resin powder fixed on the base material by a fixing agent, wherein the base material is a fiber base material having a mass per unit area in a range from 10 g/m2 to 500 g/m2, and the fixing agent is a copolymer having an acid value in a range from 20 mgKOH/g to 150 mgKOH/g and including a structural unit (X) derived from at least one monomer selected from the group consisting of an olefin and a vinyl aromatic compound and a structural unit (Y) derived from a monomer having an acidic group.本發明係提供一種吸收體，在使用樹脂將吸水性樹脂粉末固著於基材而成的吸收體中，其吸水性樹脂粉末具有優秀的承支性。吸收體包含：基材、以及藉由固著劑而固著於該基材的吸水性樹脂粉末，其中，該基材係單位重量為10 g/m2～500 g/m2的纖維基材；該固著劑係具有源於選自烯烴及乙烯芳香族所構成之群集中至少1種的單體的構造單位（X）、以及源於酸基含有單體的構造單位（Y），且酸價為20 mgKOH/g~150 mgKOH/g的共聚物。
