The invention relates to the field of plastic materials and particularly relates to high-strength composite plastics. The high-strength composite plastics consist of the following substances in parts by weight: 55-65 parts of high-density polyethylene, 15-25 parts of polycarbonate, 25-35 parts of polypropylene, 8-15 parts of dry molybdenum disulfide powder, 25-35 parts of alkali-free glass fibers, 15-25 parts of calcium stearate, 15-25 parts of phthalate, 15-25 parts of spherical silicon based oxides, 0.8-1.5 parts of nitrogen-phosphorus intumescent flame retardant, 1-3 parts of antistatic agent, 3-5 parts of potassium titanate whiskers, 5-8 parts of expanded graphite, 15-25 parts of polypropylene, 0.8-1.2 parts of dispersant, 0.5-1.5 parts of compatibilizer and 0.8-1.5 parts of antioxidant. The high-strength composite plastics provided by the invention are wear-resistant and impact-resistant; by adding the glass fibers, the high-strength composite plastics have good mechanical strength, have good tensile strength and are easy in bending; and the high-strength composite plastics further have a good anti-electrostatic effect and are long in service life.