Imported high-quality polyethylene resin, high transparent anti-puncture metallocene resin and high-efficiency, long-term anti-aging additives were prepared by three-layer co-extrusion process. The anti-ultraviolet and anti-thermal-oxidative aging properties of greenhouse film are 1-2 times higher than those of common greenhouse film. Mainly used as long-term transparent covering materials for modern and intelligent horticultural facilities such as inflatable shed, double-span, three-span and multi-span. The multi-span (inflatable) greenhouse can adopt three-year series agricultural film combination structure with three-year longevity film on the outer layer and three-year dripping longevity film on the inner layer. There are fewer diseases in the greenhouse, creating the best conditions for the production of pollution-free vegetables and fruits.