PURPOSE: To improve the passage of fluid without enlarging the cross section of an adsorbent.

CONSTITUTION: The cross section across the passage of fluid in the molded adsorbent 1 is made to be a multilayered structure of concentric circles 2. In the method for manufacturing the molded adsorbent in which a wet molded article is formed by laminating a aggregated material such as active carbon on the surface of a mold by a suction molding method and the wet molded article is dried, the aggregated material is laminated at the water passing position of the mold surface from the position which is to be the outside of the cross section across the fluid passing direction as a molded adsorbent.