An object of the present invention is to make it possible to manufacture an absorbent body in which a reinforcing layer is sandwiched between a plurality of integrated layers with simple and compact equipment. The above-described problem is caused by each of the first stacking position and the second stacking position (102x) arranged in this order with an interval in the rotational direction of the stacking drum (102) with respect to the outer peripheral surface of the stacking drum (102). , While accumulating the accumulated material in the absorber mold (in 102m), between the first accumulation position and the second accumulation position (102x), passing over the absorber mold (102m) on the outer peripheral surface of the stacking drum (102), A first integrated layer (71) in which a reinforcing layer (53) such as a continuous belt-like nonwoven fabric is supplied in the rotational direction of the pile drum (102) and is integrated at the first integration position (102x) in the absorber mold (102m). This is solved by forming the absorber (56) having the second integrated layer (72) integrated at the second integration position (102x) and the reinforcing layer (53) sandwiched therebetween.本発明の課題は、複数の集積層の間に補強層が挟まれた吸収体を、簡素かつコンパクトな設備により製造可能とすることである。上記課題は、積繊ドラム（１０２）の外周面に対し、積繊ドラム（１０２）の回転方向に間隔を空けてこの順に配置された第１集積位置及び第２集積位置（１０２ｘ）のそれぞれで、集積材料を吸収体型（１０２ｍ内）に集積するとともに、第１集積位置及び第２集積位置（１０２ｘ）の間で、積繊ドラム（１０２）の外周面における吸収体型（１０２ｍ）上を通り、積繊ドラム（１０２）の回転方向に連続帯状の不織布等の補強層（５３）を供給し、吸収体型（１０２ｍ）内に、第１集積位置（１０２ｘ）で集積した第１集積層（７１）、第２集積位置（１０２ｘ）で集積した第２集積層（７２）及びこれらの間に挟まれた補強層（５３）を有する吸収体（５６）を形成することにより解決される。
