Prefabricated sandwich outer wall insulation board reinforcing device

The utility model belongs to the field of building material processing, and particularly relates to a reinforcing device for a prefabricated sandwich outer wall insulation board. The prefabricated sandwich outer wall insulation board comprises an outer leaf, insulation nails, glass fiber ribs, an insulation board body and an inner leaf. A groove is formed in one side of the heat preservation plate, the side, provided with the groove, of the heat preservation plate is assembled with one side of the outer blade, and the other side of the heat preservation plate is assembled with one side of the inner blade. The heat preservation nails penetrate through the heat preservation plate to be fixed to the outer leaf, and the glass fiber ribs penetrate through the inner leaf to be connected with the heat preservation plate and the outer leaf at the same time. The outer leaf and the insulation board are fixed through the insulation nails, meanwhile, the protrusions are arranged on the outer leaf board, the fixing effect