The invention discloses an anti-ultraviolet protective cover material for an electric vehicle and a preparation method thereof. The prepared anti-ultraviolet protective cover material for the electricvehicle has a high ultraviolet absorption rate of almost 100%, and at the same time, has good tensile resistance, good quality and long service life, and is green and environmentally friendly. The synergistic effect of peanut shell, hazelnut shell and nano titanium dioxide greatly improves the ultraviolet resistance of the target material, reduces the production cost, and realizes the full utilization of resources; the negative pressure treatment improves the dispersibility of each component, thereby enabling interface compatibility with the polyester substrate to be improved, and the tensileproperties of the material are further enhanced; a filler is modified by using polyethylene glycol, ammonium polyphosphate, methacrylic acid oxidized propyl methyl dimethoxysilane to promote dispersion, improve the interface bonding force, enhance the mechanical properties of the material, and improve the ultraviolet resistance.