High-barrier-property high-reflection backboard material for crystalline silicon photovoltaic assembly

The invention discloses a high-barrier-property high-reflection backboard material for a crystalline silicon photovoltaic assembly. The high-barrier-property high-reflection backboard material consists of a polyester-based film layer, a high barrier layer, a plurality of high reflection structures uniformly distributed on the high barrier layer and a foaming adhesive layer, wherein the high barrier layer is formed by coextruding a first main body resin layer and a second main body resin layer in a two-layer form, the first main body resin layer is adhered with the polyester-based film layer byvirtue of adhesive, the high reflection structures are formed on the second main body resin layer by virtue of a mechanical printing way and are cured and shaped by virtue of a thermal curing, ultraviolet curing, radiation curing or microwave curing way, and the foaming adhesive layer is smeared on the second main body resin layer by virtue of a spraying, sprinkling or scraping way. A backboard prepared by the invention