NOVELTY - The device has electric water fetching water pump (19) that is connected with water inlet filter (14) through water inlet pipe (12). The water amount remote controller (15) is connected with water spraying device (17) through water outlet pipe (16). The electric boosting device (10) and electric pressure controller (11) are mounted at upper portion of water storage container (20). The electric water fetching water pump and water amount remote controller is mounted at the sides of inner of water storage container.    USE - Power supply device for water-saving spray irrigation system using solar-based hydrogen new energy source technology.    DETAILED DESCRIPTION - The device has solar-based hydrogen new energy source power supply device that includes solar battery (1) having 10-1000 square meters monocrystalline silicon solar battery or polycrystalline silicon solar battery, supporting bracket (2), conductive wire (3), electrolysis water hydrogen production device (4), hydrogen conveying pipe (5), hydrogen fuel storage container manufacturing workshop (6), hydrogen fuel storage container (7), hydrogen fuel conveying pipe (8), and hydrogen fuel battery (9). A water-saving spray irrigation device includes electric boosting device, electric pressure controller, electric water fetching water pump, water inlet pipe, water inlet filter, water pool wall (18), fresh water (13), water storage container, water amount remote controller, water outlet pipe and water spraying device. The solar battery mounted at upper end of supporting bracket is connected with electrolysis water hydrogen production device through conductive wire. The electrolysis water hydrogen production device is connected with hydrogen fuel storage container manufacturing workshop through hydrogen conveying pipe. The hydrogen fuel storage container is connected with hydrogen fuel battery through hydrogen fuel conveying pipe. The hydrogen fuel battery is connected with electric boosting device through conductive wire. The electric boosting device is connected with electric pressure controller and electric water fetching water pump through conductive wire.    DESCRIPTION OF DRAWING(S) - The drawing shows an explanatory view of the Power supply device for water-saving spray irrigation system.    Solar battery (1)    Supporting bracket (2)    Conductive wire (3)    Electrolysis water hydrogen production device (4)    Hydrogen conveying pipe (5)    Hydrogen fuel storage container manufacturing workshop (6)    Hydrogen fuel storage container (7)    Hydrogen fuel conveying pipe (8)    Hydrogen fuel battery (9)    Electric boosting device (10)    Electric pressure controller (11)    Water inlet pipe (12)    Fresh water (13)    Water inlet filter (14)    Water amount remote controller (15)    Water outlet pipe (16)    Water spraying device (17)    Water pool wall (18)    Electric water fetching water pump (19)    Water storage container (20)