NOVELTY - A hydrogen-containing gas generation apparatus has steam reforming part which produces reformed gas by modification process of hydrocarbon type raw fuel, combustion part which burns fuel for combustion in combustion air, steam production part which produces steam by heating water using combustion exhaust gas, transformation process part which performs transformation process of carbon monoxide gas in reformed gas, normal control unit which performs normal temperature control and feed rate of fuel for combustion and combustion air, and increase control unit.    USE - Hydrogen-containing gas generation apparatus for fuel cell.    ADVANTAGE - Reduction in temperature during transformation process is prevented, and efficiency does not decline.    DETAILED DESCRIPTION - A hydrogen-containing gas generation apparatus has steam reforming part which produces reformed gas by modification process of hydrocarbon type raw fuel supplied with steam, with hydrogen gas as main component, combustion part which burns fuel for combustion in combustion air, and heats the steam reforming part, steam production part which produces steam by heating water using combustion exhaust gas emitted from the combustion part, and supplies steam to the steam reforming part, transformation process part which performs transformation process of carbon monoxide gas in reformed gas, produced in the steam reforming part, to carbon dioxide gas, normal control unit which performs normal temperature control, and feed rate of fuel for combustion and combustion air supplied to the combustion part so that the temperature of the steam reforming part or combustion is in the target temperature range, and increase control unit which performs fuel for combustion and combustion air increase supplied to the combustion part. When decline in temperature in the transformation process part is detected, the normal temperature control is temporarily stopped.    DESCRIPTION OF DRAWING(S) - The drawing shows a cross-sectional diagram of the apparatus main body in hydrogen-containing gas generation apparatus. (Drawing includes non-English language text).    Apparatus main body (1)    Desulfurization process part (2)    Steam production (3)    Combustion part (4)    Steam reforming part (5)