NOVELTY - A hydrogen gas generation apparatus comprises tank (11) into which water is placed, high-pressure pump (12) which puts water in tank into high pressure state, heat exchanger (14) which heats water in high pressure state, mixer (15) which mixes organic waste with heated water, and static mixer (18) which attaches element from which the spiral of the right twist and the left twist continues by turns, and greater than or equal to 2 numbers become a ball connector while letting mixtures, such as water and organic waste, pass in the state exchangeable inside a tubular body, and hydrogen gas is set at supercritical state.    USE - A hydrogen gas generation apparatus (claimed).    ADVANTAGE - Sludge-disposal cost is reduced, amount of solid substances is small, safety regarding gas leakage and explosion-protection is achieved, and apparatus is low cost.    DETAILED DESCRIPTION - A hydrogen gas generation apparatus comprises tank (11) into which water is placed, high-pressure pump (12) which puts water in tank into high pressure state, heat exchanger (14) which heats water in high pressure state, mixer (15) which mixes organic waste with heated water, static mixer (18) which attaches element from which the spiral of the right twist and the left twist continues by turns, and greater than or equal to 2 numbers become a ball connector while letting mixtures, such as water and organic waste, pass in the state exchangeable inside a tubular body, and hydrogen gas is set at supercritical state when the mixture passes through the inside of the static mixer, and liquid cyclone separates an impurity, and hydrogen gas storage tank which stores separated hydrogen gas in the state cooled through the heat exchanger. Hydrogen gas is produced by processing excrement of humans and animals and organic waste in a supercritical area. An INDEPENDENT CLAIM is included for hydrogen gas generation method.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram of a hydrogen gas generation apparatus.    Tank (11)    High-pressure pump (12)    Heat exchanger (14)    Mixer (15)    Static mixer (18)