NOVELTY - A fibril-like polymer is generated by carrying out electrolytic oxidizing polymerization of compound having aromatic ring, on an electroconductive porous substrate. The fibril-like polymer is baked to generate carbon fiber on substrate, and metal catalyst is supported on the carbon fiber. The water-repellent process is carried out on another surface of the substrate in which carbon fiber which supported metal catalyst is not arranged. Then, polyelectrolyte is impregnated in carbon fiber in which water-repellent process is not carried out, to obtain electrode.    USE - Manufacture of electrode for polymer electrolyte fuel cell (claimed) used as power supply for electric vehicle, electric power generating system and home appliances.    ADVANTAGE - The electrode suppresses flooding in polymer electrolyte fuel cell having favorable gas permeability.    DETAILED DESCRIPTION - A fibril-like polymer is generated by carrying out electrolytic oxidizing polymerization of compound having aromatic ring, on electroconductive porous substrate. The fibril-like polymer is baked to generate carbon fiber on electroconductive porous substrate, and metal catalyst is supported on the carbon fiber. The water-repellent process is carried out on another surface of electroconductive porous substrate in which carbon fiber which supported metal catalyst is not arranged. Then, polyelectrolyte is impregnated in carbon fiber in which water-repellent process is not carried out, to obtain electrode. The electrode comprises carbon fiber and metal catalyst sequentially supported on the electroconductive porous substrate. The electroconductive porous substrate is carbon paper. The compound having aromatic ring is aniline, pyrrole, thiophene and their derivative. The metal catalyst contains platinum.    DESCRIPTION OF DRAWING(S) - The drawing shows the sectional drawing of the polymer electrolyte fuel cell.    Membrane electrode assembly (1)    Separator (2)    Solid polymer electrolyte membrane (3)    Fuel electrode (4A)    Air electrode (4B)