A water-proof air-permeable filter for ensuring ventilation and also preventing entry of water, the water-proof air-permeable filter comprising: a non-porous resin film having formed therein a plurality of through pores extending through the resin film in a thickness direction; and a treated layer having hydrophobicity and oil repellency, and formed on at least one of both surfaces in the thickness direction of the resin film such that the treated layer has openings at positions corresponding to the plurality of through pores , wherein each of the through pores of the non-porous resin film has a predetermined size which is larger than or equal to 0.5 μm and smaller than or equal to 5 μm, and the plurality of through pores are uniformly distributed on the non-porous resin film such that a density of the plurality of through pores is between 10 pores/mm 2 to 1 × 10 8 pores/mm 2 , each of the through pores are straight having a given cross-sectional shape and extending linearly through the resin film , the non-porous resin film is configured to be decomposed by an alkali solution, an oxidant solution, or an alkali solution containing an oxidant, the resin film is at least one selected from polyethylene terephthalate, polycarbonate, polyimide, and polyethylene naphthalate, the treated layer is a dried hydrophobic oil repellent agent, the hydrophobic oil repellent agent is a fluorine-based coating agent having a perfluoroalkyl group, the thickness of the treated layer is smaller than half of the predetermined size, and wherein the predetermined size of each of the through pores is within a standard deviation of 10% or less of an average pore size of the plurality of through pores . a non-porous resin film having formed therein a plurality of through pores extending through the resin film in a thickness direction; and a treated layer having hydrophobicity and oil repellency, and formed on at least one of both surfaces in the thickness direction of the resin film such that the treated layer has openings at positions corresponding to the plurality of through pores , wherein each of the through pores of the non-porous resin film has a predetermined size which is larger than or equal to 0.5 μm and smaller than or equal to 5 μm, and the plurality of through pores are uniformly distributed on the non-porous resin film such that a density of the plurality of through pores is between 10 pores/mm 2 to 1 × 10 8 pores/mm 2 , each of the through pores are straight having a given cross-sectional shape and extending linearly through the resin film , the non-porous resin film is configured to be decomposed by an alkali solution, an oxidant solution, or an alkali solution containing an oxidant, the resin film is at least one selected from polyethylene terephthalate, polycarbonate, polyimide, and polyethylene naphthalate, the treated layer is a dried hydrophobic oil repellent agent, the hydrophobic oil repellent agent is a fluorine-based coating agent having a perfluoroalkyl group, the thickness of the treated layer is smaller than half of the predetermined size, and wherein the predetermined size of each of the through pores is within a standard deviation of 10% or less of an average pore size of the plurality of through pores . <EOS>