NOVELTY - A catalyst layer is formed on support using liquid mixture containing carbon powder, cation exchange resin and liquid which dissolves cation exchange resin, and contains alcohol having steam pressure of 0.6-12.3 kPa. Alcohol is partially oxidized, and organic material consisting of intermolecular condensation reaction product of alcohol and/or partial oxidation material is removed. Thus, gas diffusion electrode is manufactured.    USE - For manufacture of gas diffusion electrode used for manufacturing polyelectrolyte type fuel cell (all claimed) used as power supply of portable devices, electric vehicles and domestic co-generation system.    ADVANTAGE - The gas diffusion electrode having excellent initial-stage characteristics and durability is manufactured easily and reliably.    DETAILED DESCRIPTION - A catalyst layer is formed on a support using a liquid mixture containing carbon powder supported on electrode catalyst, cation exchange resin and a liquid which dissolves or disperses cation exchange resin, and contains an alcohol having steam pressure of 0.6-12.3 kPa at 20 degrees C. The alcohol is partially oxidized, and organic material consisting of intermolecular condensation reaction product of alcohol and partial-oxidation material and/or intermolecular condensation reaction products of partial oxidation material is removed. Thus, gas diffusion electrode is manufactured. The ratio (mass%) of organic material remaining in the catalyst layer is controlled by the relation: (100xA 1/(E 1+G 1)) greater than or equal to 0.05, where A 1 is mass of organic material, E 1 is mass of carbon powder and G 1 is mass of cation exchange resin.    INDEPENDENT CLAIMS are included for the following:    (1) gas diffusion electrode;    (2) manufacture of polyelectrolyte-type fuel cell (10); and    (3) polyelectrolyte type fuel cell.    DESCRIPTION OF DRAWING(S) - The figure shows the perspective diagram of the polyelectrolyte type fuel cell.    polyelectrolyte type fuel cell (10)    laminate (21)    fastening rod (23)    screw spring (24)    gas introducing port (25)