The invention relates to a metal composite material preparation method, wherein the raw materials comprise iron, lead oxide, osmium, flake graphite, nickel, feldspar, titanium, ceramic, chlorinated nitrile butadiene rubber, dimethyl siloxane, lead stearate, modified montmorillonite, talc powder, kaolin and calcium carbonate. According to the present invention, the raw material source is wide, thestrength is high, the tensile strength is high, the bending strength is high, and the impact strength is high; various component provide the synergetic effect, the corrosion resistance is good, the acid corrosion resistance and the alkali corrosion resistance can be provided, and the wear resistance is up to 0.001-0.003 cm<3>; the heat resistance temperature is high, the product can resist the high temperature of 800-1800 DEG C, and the elongation at break is high; and the hardness is high, various component provide the synergetic effect, the brightness is high, the use is convenient, the costis low, the process is simple, and the product can be widely used.