The invention discloses an anti-static fiberglass-reinforced plastic grid and a preparation method thereof, and relates to the related technical field of fiberglass-reinforced plastic grid. The anti-static fiberglass-reinforced plastic grid comprises the following components: silicon resin, epoxy vinyl ester resin, polyethyleneimine, sodium laurylsulfate, maleic anhydride, octadecyl cyclosiloxane,octaphenyl-POSS, tetramethylammonium hydroxide, octyl phenyl cyclosiloxane, 4,4'-diaminodiphenyl ether, ammonium water of 20 to 25 percent, pyromellitic dianhydride, N-methylpyrrolidone, aluminum nitride, calcium aluminate, butylmercaptooxo stannane, methylene bisacrylamide, chlorinated paraffin, a silane coupling agent kh560, dimethylacetamide, polyurethane, polyglycerol fatty acid ester, zinc stearate, palm wax and an anti-static agent. The anti-static fiberglass-reinforced plastic grid has an anti-static property, high heat resistance, toughness and fatigue resistance and still can maintain anti-static property in the damp environment.