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 m/gram or more by nitrogen BET method and a pore volume of 0.1 cm/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.
