A fuel cell in form of a solid polymer fuel cell, comprising: an electrolyte (23; 810s); an anode (22; 22v1; 22v2; 22v3; 22v4; 22v5; 22v6; 820s) provided on one side of the electrolyte (23; 810s) and having a hydrogen-gas consuming face at which hydrogen gas is consumed; a cathode (24; 830s) provided on the other side of the electrolyte (23; 810s) and having an oxidizing-gas consuming face at which oxidizing gas is consumed; a first separator (43, 600s) provided adjacent to the hydrogen-gas consuming face; a second separator (41, 600s) provided adjacent to the oxidizing-gas consuming face; a hydrogen-gas passage portion forming a passage through which hydrogen gas is supplied to predetermined regions of the hydrogen-gas consuming face of the anode (22; 22v1; 22v2; 22v3; 22v4; 22v5; 22v6; 820s), wherein the fuel cell (100n; 100s) has an anode dead-end structure, characterized in that the hydrogen-gas passage portion includes: a fuel gas supply plate functioning as a reverse-flow suppressing portion (21n; 860s) and having a plurality of through holes (211n; 211v2; 211v3; 211v4; 865s; 865As), the fuel gas supply plate or reverse-flow suppressing portion (21n; 860s) being located between the first separator and the anode (22; 22v1; 22v2; 22v3; 22v4; 22v5; 22v6; 820s); a first passage portion (14h; 14hv1; 14hv3; 14hv6) that is located between a first side of the fuel gas supply plate (21n; 860s) and the first separator; and a second passage portion (14a; 14av1; 14av2; 14av3; 14av4) that is provided at the other, second, side of the fuel gas supply plate, wherein the first passage portion (14h; 14hv1) and the second passage portion (14a; 14av1) each have a porous portion permeable to hydrogen gas, and a pressure loss per unit length of the porous portion of the second passage portion (14a; 14av1) is smaller than a pressure loss per unit length of the porous portion of the first passage portion (14h; 14hv1). an electrolyte (23; 810s); an anode (22; 22v1; 22v2; 22v3; 22v4; 22v5; 22v6; 820s) provided on one side of the electrolyte (23; 810s) and having a hydrogen-gas consuming face at which hydrogen gas is consumed; a cathode (24; 830s) provided on the other side of the electrolyte (23; 810s) and having an oxidizing-gas consuming face at which oxidizing gas is consumed; a first separator (43, 600s) provided adjacent to the hydrogen-gas consuming face; a second separator (41, 600s) provided adjacent to the oxidizing-gas consuming face; a hydrogen-gas passage portion forming a passage through which hydrogen gas is supplied to predetermined regions of the hydrogen-gas consuming face of the anode (22; 22v1; 22v2; 22v3; 22v4; 22v5; 22v6; 820s), wherein the fuel cell (100n; 100s) has an anode dead-end structure, characterized in that the hydrogen-gas passage portion includes: a fuel gas supply plate functioning as a reverse-flow suppressing portion (21n; 860s) and having a plurality of through holes (211n; 211v2; 211v3; 211v4; 865s; 865As), the fuel gas supply plate or reverse-flow suppressing portion (21n; 860s) being located between the first separator and the anode (22; 22v1; 22v2; 22v3; 22v4; 22v5; 22v6; 820s); a first passage portion (14h; 14hv1; 14hv3; 14hv6) that is located between a first side of the fuel gas supply plate (21n; 860s) and the first separator; and a second passage portion (14a; 14av1; 14av2; 14av3; 14av4) that is provided at the other, second, side of the fuel gas supply plate, wherein the first passage portion (14h; 14hv1) and the second passage portion (14a; 14av1) each have a porous portion permeable to hydrogen gas, and a pressure loss per unit length of the porous portion of the second passage portion (14a; 14av1) is smaller than a pressure loss per unit length of the porous portion of the first passage portion (14h; 14hv1). a fuel gas supply plate functioning as a reverse-flow suppressing portion (21n; 860s) and having a plurality of through holes (211n; 211v2; 211v3; 211v4; 865s; 865As), the fuel gas supply plate or reverse-flow suppressing portion (21n; 860s) being located between the first separator and the anode (22; 22v1; 22v2; 22v3; 22v4; 22v5; 22v6; 820s); a first passage portion (14h; 14hv1; 14hv3; 14hv6) that is located between a first side of the fuel gas supply plate (21n; 860s) and the first separator; and a second passage portion (14a; 14av1; 14av2; 14av3; 14av4) that is provided at the other, second, side of the fuel gas supply plate, wherein the first passage portion (14h; 14hv1) and the second passage portion (14a; 14av1) each have a porous portion permeable to hydrogen gas, and a pressure loss per unit length of the porous portion of the second passage portion (14a; 14av1) is smaller than a pressure loss per unit length of the porous portion of the first passage portion (14h; 14hv1).