A device for manufacturing an absorbent body by depositing in a deposit part (21) liquid absorbing fibers that are in a first gas flowing inside a duct (31). The device comprises: the deposit part (21) which moves in a predetermined movement pathway the duct (31) which sprays the liquid absorbing fibers from a spray port (31a) disposed facing the movement pathway a particulate matter ejecting tube (41) the tip part of which is inserted into the duct (31) and which ejects a second gas into which particulate matter was mixed from the ejection port (41a) of the tip part and a movable restricting part (50) which restricts the flow path of the particulate matter ejection tube (41) and changes the ejection and distribution of the particulate matter. The movable restricting part (50) operates in conjunction with the movement of the deposit part (21).
