To provide a method of efficiently producing a porous functional material that has a limonite-like function and can be used in applications including the elimination of environmental pollutants.SOLUTION: There is provided a method for producing a porous functional material in which a limonite component is supported on a porous carrier. The method comprises a contacting step of allowing a mixture liquid including a porous carrier and a limonite-based solution to be supplied with and contact oxygen such that oxygen soluble in the mixture liquid has a concentration of 2 mg/L or greater, and a drying step of drying the porous carrier having undergone the contacting step.SELECTED DRAWING: Figure 4【課題】 環境汚染物質の除去等に用いることができるリモナイト様の機能を有する多孔質機能材料を効率よく製造する方法を提供する。【解決手段】 多孔質担体と、リモナイト系溶液とを含む混合液を、前記混合液に酸素を供給することで前記混合液の溶存酸素濃度を2mg/L以上として接触させる接触工程と、前記接触工程後の多孔質担体を乾燥させる乾燥工程とを有する多孔質担体にリモナイト成分を担持させた多孔質機能材料の製造方法。【選択図】 図4