Fecha de publicación: 24/12/2021 Fuente: Wipo Tobacco Agriculture The invention belongs to the technical field of agricultural planting, and particularly discloses a multifunctional grass film and a preparation method thereof. The preparation method of the multifunctional grass film comprises the following steps: S1, preparing raw materials: sequentially preparing the following raw materials in parts by weight: 30-40% of a base material; 8 to 15% of attapulgite; 20-25% of forage grass; 5-9% of a bean product; 3-5% of tapioca flour; 3-4% of tobacco; 0.5-1% of insect repellent powder; and 0.5 to 1% of chitin; s2, performing raw material treatment, to be more specific, crushing the base material, then uniformly stirring the crushed base material with pasture, bean products, tapioca flour, tobacco and chitin, adding zymophyte, and fermenting for 10-20 days to obtain a fermented material; s3, performing fermentation material treatment, to be more specific, stirring the fermentation material, and spraying attapulgite into the fermentation material to obtain a mulching film raw material; and s4, preparing a multifunctional grass film, to be more specific, allowing the mulching film raw materials to be subjected to rolling forming, then packaging the rolled product , and adding zymophyte and insect repelling powder to obtain the multifunctional grass film . The multifunctional grass film can be used for preventing grass from growing on the land, can be naturally degraded and provides nutrients for plant growth.