NOVELTY - Device comprises (a) a disk-shaped body (400), (b) a supporting shaft (300) formed at center upper surface of the body, (c) a wind power generating unit (100) with rotating blades rotated by wind, (d) a hydropower generating unit (200) rotating independently of the wind power generating unit, (e) a power supply for supplying and storing electricity generated from the wind power generating unit and the hydropower generating unit, (f) a rudder (600) formed at lower surface of the body, (g) an electrolytic part containing cation and anion exchange resin, and (h) a collecting part.    USE - The device is useful for generating hydrogen and oxygen using power generator with wind power and hydropower (claimed).    ADVANTAGE - The device produces hydrogen and oxygen in environmentally friendly and cost-efficient manner.    DETAILED DESCRIPTION - Device comprises (a) a disk-shaped body (400), (b) a supporting shaft (300) formed at center upper surface of the body, (c) a wind power generating unit (100) with rotating blades rotated by wind, rotatably connected to the supporting shaft at top, (d) a hydropower generating unit (200) rotating independently of the wind power generating unit, formed with impellers rotated by hydropower and rotatably connected to the supporting shaft at bottom, (e) a power supply for supplying and storing electricity generated from the wind power generating unit and the hydropower generating unit, (f) a rudder (600) formed at lower surface of the body, (g) an electrolytic part containing cation and anion exchange resin, having a first mesh network of negative electrode generating hydrogen from flowing water i.e. by electrolyzing with electricity from the power supply formed at front, and a second mesh network of positive electrode generating oxygen from flowing water by applying power from the power supply formed at rear, formed at predetermined position of the rudder, and (h) a collecting part for collecting hydrogen or oxygen decomposed in the electrolytic part.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of the device for generating hydrogen and oxygen using power generator with wind power and hydropower.    Wind power generating unit (100)    Hydropower generating unit (200)    Supporting shaft (300)    Body (400)    Rudder (600)