This method for manufacturing an absorbent body comprises: a slit forming step of intermittently forming, in a band-like base material sheet, a plurality of slits extending along a conveyance direction and spaced apart from one another in the width direction, thereby providing a long-base-part connected body in which a plurality of long base parts are connected in the width direction via non-cut parts located between the slits adjacent in the conveyance direction； a coating step of coating one surface of the long-base-part connected body with an adhesive； a polymer spraying step of spraying water absorbent polymer particles onto the surface coated with the adhesive and affixing the water absorbent polymer particles onto the long-base-part connected body through the adhesive； and a cutoff step of cutting the non-cut parts so as to join the slits adjacent in the conveyance direction, thereby cutting apart the long-base-part connected body into the plurality of long base parts and forming absorbent units.本發明之吸收體之製造方法包括：切口部形成步驟，其係於帶狀之基材片間歇地形成沿搬送方向延伸並且於寬度方向隔開間隔之複數條切口部，而形成經由配置於在搬送方向上相鄰之切口部間之非切斷部將複數條長條狀基體部於寬度方向連結之長條狀基體部連結體；塗佈步驟，其係對長條狀基體部連結體之一個面塗佈接著劑；聚合物散佈步驟，其係對塗佈有接著劑之面上散佈吸水性聚合物之粒子，經由接著劑，將吸水性聚合物之粒子固定於長條狀基體部連結體；及切離步驟，其係藉由以使沿搬送方向而相鄰之切口部彼此連結之方式將非切斷部切斷，將長條狀基體部連結體切離成複數條長條狀基體部而形成吸收性單元。
