Preparation method of agricultural film with temperature adjusting function

The invention discloses a preparation method of an agricultural film with a temperature regulation function, which comprises the following steps: S1, mixing deionized water and inorganic salt according to a certain proportion to obtain a green solvent; s2, mixing a core layer phase change material with a green solvent according to a certain proportion to obtain a core layer spinning solution; mixing a shell layer supporting material with deionized water according to a certain proportion to obtain a shell layer spinning solution; s3, the core layer spinning solution injector is connected with an inner needle of a stainless steel coaxial spray head, the shell layer spinning solution injector is connected with an outer needle of the stainless steel coaxial spray head, spinning is conducted in an electrostatic spinning device, and phase change fibers of a core-shell structure are obtained; s4, preparing the thin film: adding the phase change fibers into thin film raw materials, mixing to obtain a mixture, and add