The invention relates to agricultural mulching film made of bamboo fiber and waste silk non-woven fabric, and belongs to the field of film. The agricultural mulching film made of the bamboo fiber and waste silk non-woven fabric mainly solves the technical problems that existing agricultural film is difficult to be degraded, permeability of soil is seriously reduced, great difficulties are brought to farming, sowing and growth of crops, and serious white pollution is caused. A preparation method of the agricultural mulching film made of the bamboo fiber and waste silk non-woven fabric comprises the steps that a prepared composite adhesive is evenly sprayed on composite fibers of the bamboo fibers and waste silk fibers, desulfurization is conducted through a sodium hydroxide aqueous solution, bleaching, softening and drying are conducted in sequence, prepared agricultural film which is made of plant fibers can be completely degraded after being used for three months, soil pollution Management of users, information categories, map images and information auditingcaused by residues can be effectively avoided, green environmental protection is achieved, the cost is low, and the agricultural mulching film made of the bamboo fiber and waste silk non-woven fabric can be used and promoted in a large area.