A fuel cell (100) has an electrical generation section (24) including an anode, an electrolyte, and a cathode; a porous-body flow passage (50, 60) disposed on at least one side of the anode side of the electrical generation section and the cathode side thereof; and a separator (10) disposed on the opposite side of the porous-body flow passage from the electrical generation section; wherein the porous-body flow passage includes a high porosity location (51, 61) having a higher porosity than an average porosity thereof and a low porosity location having a lower porosity than the average porosity thereof, wherein the high porosity location communicates with a gas discharging-side manifold (41b, 42b) via the low porosity location.