Huadun grape special film has been widely used in Northeast, Northwest and South China. According to the characteristics of crop growth, it is made by five layers of co-extrusion blow moulding. The product has good mechanical properties, such as aging resistance, drip drop, fog elimination, high transparency, high thermal insulation and astigmatism, and has certain dust-proof function. It is conducive to improving the quality of fruit, no leaves, root burns, rich color, praised by users.