Unit cell for fuel cell and solid oxide fuel cell

This unit cell for a fuel cell is formed by laminating a fuel electrode (3), a solid electrolyte (2) and an air electrode (1) on a porous base material (4). The porous base material (4) has a plurality of fine pores (5) through which fuel gas can flow and has a reforming catalysis. The unit cells for the fuel cell are coupled and integrated two-dimensionally to make a stack for the fuel cell, and thus a solid oxide fuel cell having this stack as a power generating element is formed.