NOVELTY - A gas diffusion electrode comprises conductive fiber membrane (1), conductive fine particle layer (9), and catalyst (10). The conductive fine particle layer exists while coming into contact with one of the surfaces of the membrane. The membrane comprises region carrying the catalyst, and region free from carrying the catalyst. The region carrying the catalyst includes surface of the conductive fiber membrane on an opposite side of surface of the conductive fiber membrane. The catalyst is brought into contact with conductive fine particle layer.    USE - A gas diffusion electrode for fuel cells used in automobiles and household generator.    ADVANTAGE - The gas diffusion electrode suppresses flooding. The gas diffusion electrode eliminates the problem regarding weakening of pores capillary forces, thus eliminating flooding and obtains drainage property. The gas diffusion electrode provides high power generation property even with small amount of catalyst metal is used. The gas diffusion electrode saves or minimizes the requirement of organic solvent at time of manufacture compare to that in the prior art, thus providing small environmental load and thus lowering manufacturing costs.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for:    (1) fuel cell comprising pair of gas diffusion electrodes, and electrolyte membrane sandwiched between the pair of gas diffusion electrodes containing gas diffusion electrode; and    (2) manufacturing gas diffusion electrode comprising forming region carrying catalyst and/or its precursor, and region free from carrying catalyst and/or its precursor on the conductive fibers membrane by forming catalyst and/or its precursor on side of a surface free from being brought into contact with the conductive fine particle layer via oxidation reactive sputtering and reaction ion plating.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the sectional structure of fuel cell unit of polymer electrolyte fuel cell that uses diffusion electrodes.    Polymer electrolyte membrane (1)    Anode and cathode side gas diffusion electrode (2, 3)    Anode and cathode side separators (4, 6)    Anode and cathode side collecting plates (5, 7)    Conductive fine particle layer (9)    Catalyst (10)    Membrane electrode assembly (14)