A fuel cell module 1 comprises a vaporizer 5 for generating steam; a reformer 2 for generating reformed gas by using the steam and a hydrogen-containing fuel; a cell stack 3 for generating power by using the reformed gas; and a housing 7 which accommodates in inside thereof the vaporizer 5, the reformer 2, and the cell stack 3 and comprises in inside thereof a wall portion defining an exhaust gas flow channel 12 for discharging exhaust gas EG of the cell stack 3 to an outside, wherein the wall portion comprises an inner wall portion defining an accommodation chamber 11 which houses in inside thereof the reformer 2 and the cell stack 3; and an outer wall portion located on an outside of the inner wall portion and disposed opposite to and spaced from the inner wall portion, and defines the exhaust gas flow channel 12 communicating to the accommodation chamber 11 between the inner wall portion and the outer wall portion, and the vaporizer 5 is disposed in the exhaust gas flow channel 12 at a position below the reformer 2 and the cell stack 3 so that the vaporizer 5 is spaced from the reformer 2, and further, spaced from the outer wall portion.
