PROBLEM TO BE SOLVED: To provide a method of producing a sterilization agent composed of porous carbon material and having excellent deodorant and sterilization effect.SOLUTION: A method of producing a sterilization agent according to the invention is a method of producing a sterilization agent composed of (A) porous carbon material and (B) a silver member adhering to the porous carbon material, and having a specific surface area value of 10 m2/gram or more by nitrogen BET method and a pore volume of 0.1 cm3/gram or more by BJH method and MP method, wherein the silver member is made to adhere to the porous carbon material by impregnating it with silver salt aqueous solution.COPYRIGHT: (C)2015,JPO&INPIT【課題】多孔質炭素材料から構成され、優れた消臭及び殺菌効果を有する殺菌剤の製造方法を提供する。【解決手段】殺菌剤の製造方法は、(A)多孔質炭素材料、及び、(B)該多孔質炭素材料に付着した銀部材から成り、窒素BET法による比表面積の値が10m2/グラム以上、BJH法及びMP法による細孔の容積が0.1cm3/グラム以上である殺菌剤の製造方法であって、銀塩水溶液への含浸に基づき、多孔質炭素材料に銀部材を付着させる。【選択図】 図2