Mulching membrane and preparation method thereof

The invention relates to a mulching membrane and a preparation method thereof. The positive side of the mulching membrane has a silver colour with a reflectance rate of 45%-50%, and the back side of the mulching membrane has a black colour, and the mulching membrane comprises the following raw materials during preparation: 8-15 parts of highly-reflective silver master batches, 8-15 parts of black master batches, 62-70 parts of linear low density polyethylene, 3-9 parts of low density polyethylene, 3-10 parts of a metallocene, and 2-6 parts of anti-aging special master batches. Besides the advantages of water retention, soil conservation, fertilizer conservation and effective control on soil moisture and temperature, the silver and black double-side mulching membrane also has the following advantages: the light transmittance is 10%, the reflectance rate is 45%-50%, on one hand, the silver positive side can have a repellent effect on aphids, and on the other hand, existed reflected light enables fruits growing