NOVELTY - A solar battery back panel using UV curable weatherable coating, comprises: a base material coated with at least one UV curable weatherable coating. The coating is prepared by materials comprising (wt.%): weather photosensitive resin (50-80), reactive diluent (10-20), initiator (2-15), stuffing (5-30), dispersant (0.5-2), antioxidant (0.5-2), anti-hydrolysis agent (0.5-2) and antiaging agent (0.5-2).    USE - As solar battery back panel useful in solar energy battery (claimed).    ADVANTAGE - The method adopts UV curable weatherable coating by directly coating and has high curing rate and production efficiency of the solar battery plate on the base material; performs coating at the same time avoids the environment pollution with organic solvent, so that the whole production process has no volatilization of organic solvent and meets the requirements of green environmental protection standard. The solar battery back plate has insulating material; has anti-water vapor transmission rate, good mechanical property and weather resistance, and forms no delaminating, no bubble and no color; and can be used more than 25 years on the solar energy battery. Using solar battery back board of high toughness and high production efficiency can effectively reduce the manufacturing cost of the back plate, which is the development trend of the future, especially widely used for environmental pollution with the organic solvent of the existing background coating back plate and developing high production efficiency, without volatilizing the solvent.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for manufacturing the solar battery back panel adopting UV curable wearable coating, involving: (1) preparing the UV curable weatherable coating of specific gravity ; (2) filling part of weather resistance photosensitive resin and all through the sand mill to evenly mix to obtain the mother solution; (3) mixing evenly the active diluent mother solution of the step (2) with the rest weather photosensitive resin and the step (1), initiator, dispersant, antioxidant, anti-hydrolyzing agent and anti-aging agent to obtain coating; and (4) coating the coating of step (3) on one surface or two surfaces of the base material surface-treated by the machine head, and UV solidifying to obtain solar cell back plate.