A tubular fuel cell (10) includes an inner current collector (5), a membrane-electrode assembly (6a), and seal portions (7al, 7a2) provided at the axial end portions of the membrane-electrode assembly, respectively. The membrane-electrode assembly includes an inner catalyst layer (2a) provided on the inner current collector, an electrolyte membrane (1) provided on the inner catalyst layer, and anouter catalyst layer (2b) provided on the electrolyte membrane. The axial length of the outer catalyst layer is shorter than the axial lengths of the electrolyte membrane and the outer catalyst layer.The axial end face of the outer catalyst layer and the axial end face of the inner catalyst layer are located on the opposite sides of the seal portion in each side of the tubular fuel cell.