The present invention relates to an inorganic ion conductive membrane, a fuel cell and a manufacturing method thereof for manufacturing an inorganic ion conductive membrane as an inorganic coating containing a plurality of air holes through an anodic oxidation reaction and applying the conductive membrane to a fuel cell such that the fuel cell operates stably at all temperatures, exhibits high performance and prevents fuel leakage. According to the present invention, there is provided a method for manufacturing an inorganic ion conductive membrane, including (a) a step of arranging a metal and a conductive wire made of materials same as the metal, and applying an anode current to the metal and a cathode current to the conductive wire, and (b) a step of applying an electrolyte to the metal and the conductive wire to form an inorganic coating containing a plurality of air holes on at least a part of both sides of the metal where the anode current is applied, and there is provided a method for manufacturing a fuel cell using the inorganic ion conductive membrane.