NOVELTY - The polymer electrolyte fuel cell (1) has proton-conductive polymer electrolyte membrane (2), anode catalyst layer (5), cathode catalyst layer (6), and porous intermediate layer (4). A gaseous-diffusion layer (7) is arranged on outer side of each intermediate layer for diffusing reactive gas in the catalyst layer. A separator board (3) provided with a gas flow path for the reactive gas is arranged on the outer side of each gaseous-diffusion layer. The intermediate layer is stuffed into the thickness direction of the gaseous-diffusion layer.    USE - Polymer electrolyte fuel cell is used for electric-power generation.    ADVANTAGE - The polymer electrolyte fuel cell has an intermediate layer having excellent compressibility-proof property, and catalyst layer and gaseous-diffusion interlayer having excellent electronic conductivity. The reactive-gas supply from gaseous-diffusion layer and wastewater from catalyst layer are favorable.    DETAILED DESCRIPTION - The polymer electrolyte fuel cell (1) has a proton-conductive polymer electrolyte membrane (2), an anode catalyst layer (5) arranged on one side of the electrolyte membrane, a cathode catalyst layer (6) arranged on the other side of the electrolyte membrane, and a porous intermediate layer (4) arranged on the outer side of each catalyst layer. A gaseous-diffusion layer (7) is arranged on the outer side of each intermediate layer for diffusing a reactive gas in the catalyst layer through the intermediate layer. A separator board (3) provided with a gas flow path for the reactive gas is arranged on the outer side of each gaseous-diffusion layer. The intermediate layer is stuffed into the thickness direction of the gaseous-diffusion layer. An INDEPENDENT CLAIM is included for manufacture of polymer electrolyte fuel cell.    DESCRIPTION OF DRAWING(S) - The drawing shows the sectional view of the polymer electrolyte fuel cell. (Drawing includes non-English language text)    Polymer electrolyte fuel cell (1)    Polymer electrolyte membrane (2)    Separator board (3)    Intermediate layer (4)    Anode catalyst layer (5)    Cathode catalyst layer (6)    Gaseous-diffusion layer (7)