The invention discloses a thermosetting resin material for an automotive relay shell. The thermosetting resin material is characterized in by comprising the following raw materials including, by weight, 100-130 parts of epoxy resin E40, 10-12 parts of methylhexahydrophthalic anhydride, 3-4 parts of trimellitate, 2-3 parts of PTMG, 10-12 parts of zirconium carbonate, 0.7-1 part of ethoxylated alkyl phenol ammonium sulfate, 0.1-0.2 part of hexamethyl cyclotrisiloxane, 6-9 parts of maleic anhydride, 0.1-0.5 part of dicumyl peroxide, 17-20 parts of 3-(trifluoromethyl) benzophenone, 2-3 parts of hydroquinone, 0.1-0.4 part of 2-thiol group truxene imidazole and 3-4 parts of straw powder. The resin material has very good toughness and impact resistance, and is high in surface intensity, waterproof, good in corrosion resistance, high in protectiveness on a relay and good in insulation stability; and according to the thermosetting resin material, an acid anhydride grafting reaction is adopted, so that the dispersibility of fillers between the resin is effectively improved, and the comprehensive performance of the finished product material is improved.