The invention discloses a wear-resistant PVC pipe and a preparation method thereof. The PVC pipe is prepared from the following raw materials by weight part: 60-80 of SG-5 type PVC, 20-30 of ultra high molecular weight polyethylene, 4-8 of tungsten diselenide, 5-10 of titanium nitride, 5-10 of fullerene, 8-14 of low viscosity poly alpha-olefin, 5-10 of polytetrafluoroethylene ultrafine powder, 3-6 of jojoba wax, 10-15 of ditridecyl phthalate, 15-20 of precipitated white carbon black, 2-4 of magnesium oleate, 10-15 of sepiolite powder, 2-3 of lead carbonate, 1-2 of terephthalylidene dicamphor sulfonie acid, 1-2 of 4, 4'-bis(alpha, alpha-dimethyl benzyl)diphenylamine, and 4-6 of an assistant. The PVC pipe prepared by the invention not only has excellent wear resistance and temperature resistance, but also has good corrosion resistance, impact resistance, pressure resistance and aging resistance. With the characteristics of long service life, simple processing, low cost, safety and reliability, the PVC pipe has wide application.