The agricultural film was prepared by co-extrusion of polyethylene resin and composite additives, such as photo-oxidation resistance and aging resistance, using a three-layer co-extrusion and internal cooling process. This is a traditional variety with good light transmittance and dust-proof. It is mainly suitable for crop heat preservation, wind-proof and rain-proof. Its light transmittance, heat preservation, tensile strength and aging resistance are good. It is of great significance for the growth of greenhouse crops, increasing production and income.