The project of the present invention ties up to what for the manufacturing method of the absorber of absorbent commodity, also can inhibit superabsorbent polymer and is crushed, and can make the thickness of absorber thin.Means to solve project are,The manufacturing method of the absorber of absorbent commodity,System has following step: (1) it will be mixed into the gas of liquidabsorbing fibres and superabsorbent polymer,It is sucked from the suction hole of the bottom of shaping dies,By aforementioned liquids absorbency fiber and superabsorbent polymer what afore-mentioned bottom,Thereby said absorbent is shaped; (2) in aforementioned forming step Hou,In the state for not supplying These gases,Air-breathing is carried out from the suction hole for the mounting surface for being placed with said absorbent,And the air pressure in gap is low between the intracorporal fiber of absorption that the air pressure in gap between the fiber in the prior absorbent body in the air-breathing is made in the lamination of more aforementioned forming step,The intracorporal gas of absorption by the aforementioned mounting surface of mounting what is thereby drawn,The lamination thickness of said absorbent is made thin.本發明之課題係在於針對吸收性物品之吸收體的製造方法,亦可抑制高吸收性聚合物被壓潰,且可將吸收體的厚度作薄。用以解決課題之手段為,吸收性物品之吸收體的製造方法,係具有下述步驟:(1)將混入有液體吸收性纖維及高吸收性聚合物之氣體,自成形模具的底部之吸氣孔吸入,將前述液體吸收性纖維及高吸收性聚合物層積於前述底部,藉此來將前述吸收體成形;(2)在前述成形步驟後,在未供給前述氣體的狀態,自載置有前述吸收體之載置面的吸氣孔進行吸氣,並且將該吸氣中的前述吸收體內的纖維間間隙之氣壓作成為較前述成形步驟之層積中的吸收體內的纖維間間隙之氣壓低,藉此吸取已被載置於前述載置面的吸收體內的氣體,將前述吸收體的層積厚度作薄。