The invention discloses a thermoplastic vulcanized rubber material for an automobile turning dust cover and a preparation method of the thermoplastic vulcanized rubber material. The thermoplastic vulcanized rubber material is prepared from, by weight, 100-300 parts of EPDM, 20-80 parts of polypropylene, 10-50 parts of linear low density polyethylene, 40-100 parts of thermoplastic polyurethane elastomers, 5-15 parts of ethylene-octylene copolymers, 5-15 parts of compatilizer, 10-80 parts of inorganic filler, 3-5 parts of silane coupling agent, 0.2-10 parts of cross-linking agent, 1-5 parts of activated zinc oxide, 1-3 parts of primary antioxidant, 0.5-1 part of auxiliary antioxidant, 1-3 parts of ultraviolet light absorber, 20-100 parts of processing oil and 2-6 parts of lubricating oil. The thermoplastic vulcanized rubber material has excellent strength, high temperature resistance, flexibility and blow molding performance.