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 a reactive gas in catalyst layer. A separator board (3) provided with gas flow path for reactive gas is arranged on the outer side of each gaseous-diffusion layer. The flow path opens on the outer side of gaseous-diffusion layer(s), and bottomed holes (9) close the inner side.    USE - Polymer electrolyte fuel cell is used for electric-power generation.    ADVANTAGE - The polymer electrolyte fuel cell suppresses retention of excess water in the electrode base material used as hindrance of supply of reactive gas. The fuel cell has improved electric-power generation efficiency. Gas leak is gaseous-diffusion layer is suppressed.    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 flow path opens on the outer side of gaseous-diffusion layer(s), and bottomed holes (9) close the inner side. 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.    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)    Bottomed hole (9)