NOVELTY - A hydrogen-generating apparatus consists of a hydrodesulfurization device (1), a hydrogenated temperature detector (2), a material supply device (3), a hydrogen-containing gas supply device (4), and a controller (5). The material supply device supplies a source gas to the hydrodesulfurization device. The controller controls the material supply device, such that flow volume of source gas supplied to hydrodesulfurization device is increased by controlling temperature detected by hydrogenated temperature higher than a preset primary temperature threshold value.    USE - Hydrogen-generating apparatus is used for fuel cell used for generation of electric power.    ADVANTAGE - The hydrogen-generating apparatus has high hydrogen generation amount, by effective control of flow volume of the source gas.    DETAILED DESCRIPTION - A hydrogen-generating apparatus consists of a hydrodesulfurization device, a hydrogenated temperature detector, a material supply device, a hydrogen-containing gas supply device, and a controller. The hydrodesulfurization device removes the sulfur component in source gas. The hydrogenated temperature detector detects the temperature of the hydrodesulfurization device. The material supply device supplies the source gas to hydrodesulfurization device. The hydrogen-containing gas supply device supplies a hydrogen-containing gas to the hydrodesulfurization device. The controller controls the material supply device, such that flow volume of source gas supplied to hydrodesulfurization device is increased by controlling temperature detected by hydrogenated temperature higher than preset primary temperature threshold value, when the temperature detected by hydrogenated temperature detector reaches less than the preset primary temperature threshold value.    DESCRIPTION OF DRAWING(S) - The drawing shows the schematic view of the hydrogen-generating apparatus. (Drawing includes non-English language text)    Hydrodesulfurization device (1)    Hydrogenated temperature detector (2)    Material supply device (3)    Hydrogen-containing gas supply device (4)    Controller (5)