The invention belongs to the technical field of polymer composite material modification, and particularly relates to a pollution-resistance high-temperature-resistance polypropylene material and a preparation method thereof. The polypropylene material is characterized in that high-crystallization homopolymer polypropylene is taken as a basic component, polyketone resin is added to improve the wearresistance and mechanical performance of the material, barium sulfate masterbatch is taken as a filling agent to reduce dust pollution, a compatibilizer is added to improve the bonding force betweenraw materials to improve the mechanical performance of the material, organic group modified ultrahigh molecular weight polyorganosiloxane is taken as an antifouling agent to improve the water and oilresistance and the wear resistance of the material, and the anti-ageing performance of the material is improved by adopting an antioxidant. The material has the advantages of easy processing, high glossiness, high wearing resistance, pollution resistance, easy dyeing, excellent physical mechanical performance and the like, the demands by household electrical appliance products and kitchen electrical appliances on housing materials thereof in severe environments can be completely met, and the material can be widely applied to the production of plastic spare parts which need to slide or rotate in the fields of machinery, building materials, sports and the like.