NOVELTY - An apparatus for preparation of hydrogen by organic waste water comprises a pot; where in the pot, the lower part is a degradation/sedimentation area, middle part is an electrolysis area, upper part is a gas/liquid/solid three-phase separation area; side wall of degradation/sedimentation area is equipped with an organic waste water inlet; electrolysis area is equipped with cathode and anode electrode plates connected with the power supply; the top of the gas/liquid/solid three-phase separation area is equipped with a hydrogen outlet, two sides are equipped with a water outlet.    USE - An apparatus for preparation of hydrogen by organic waste water (claimed).    ADVANTAGE - The apparatus for preparation of hydrogen by organic waste water has simple structure and convenient operation; it prepares hydrogen when treating waste water and organic wastes, the benefit is far greater than the operation cost of system; the cost is lower than the cost of traditional waste water and organic waste treatment; it can create great economic benefit, the prepared hydrogen is a clean energy source, so the apparatus has excellent environmental benefit.    DETAILED DESCRIPTION - An apparatus for preparation of hydrogen by organic waste water comprises a pot; where in the pot, lower part is a degradation/sedimentation area, the middle part is an electrolysis area, the upper part is a gas/liquid/solid three-phase separation area; side wall of degradation/sedimentation area is equipped with an organic waste water inlet, its bottom is a reverse taper, its lowest end is equipped with a sludge outlet; the electrolysis area is equipped with a cathode electrode plate and an anode electrode plate connected with the power supply; the top of the gas/liquid/solid three-phase separation area is equipped with a hydrogen outlet, two sides are equipped with a water outlet.    DESCRIPTION OF DRAWING(S) - The drawing shows a perspective view of an apparatus for preparation of hydrogen by organic waste water.