The present invention relates to a fuel-cell device utilizing surface-migration on organic solid wherein a cathode layer (2) and an anode layer (3) are arranged in parallel to each other on one surface of a solid organic substrate (1). A strip-shaped cathode layer (2) formed from SSC or the like and a strip-shaped permeable anode layer (3) formed from a rhenium metal powder or the like are arranged in parallel and spaced apart from each other on one surface of the substrate (1) made of a polyester film or the like. A fluid fuel such as ethanol is supplied to the entire surface of the anode layer (3) so as to permeate therethrough. Oxygen ions formed at the cathode layer (2) exposed to the atmosphere migrate over a surface of the substrate (1) and react with the fuel species supplied to the anode layer (3).
