Light prepreg for unmanned aerial vehicle shell and preparation method of prepreg

The invention discloses a light prepreg for an unmanned aerial vehicle shell and a preparation method of the prepreg, relating to a prepreg and a preparation method thereof. The prepreg disclosed by the invention is made of epoxy resin system penetrated reinforcing material, wherein the epoxy resin system consists of the following components in percentage by mass: 30-80 percent of epoxy resin mixture, 1-20 percent of nano particles, 1-10 percent of hollow microspheres and 5-40 percent of curing agent system mixture; the epoxy resin mixture is prepared by mixing the components in percentage by mass: 20-60 percent of solid state or semi-solid state epoxy resin and 40-80 percent of liquid epoxy resin; and the curing agent system mixture is formed by mixing the components in percentage by mass: 40-90 percent of curing agent and 10-60 percent of curing agent. The prepreg can be cured at 60 DEG C and is suitable for low-pressure molding processes such as a vacuum bag molding process. The cured prepreg has small density, high strength and excellent dielectric properties and is suitable for preparing light and high-strength unmanned aerial vehicle shells, particularly unmanned aerial vehicle shells with wave-transparent requirements.