The invention provides a coated cloth for car covering, which comprises a base cloth, antimicrobial coatings coated on the upper and the lower surfaces of the base cloth, first coatings coated on theouter surfaces of the antimicrobial coatings and second coatings coated on the outer surfaces of the first coatings, wherein the first coatings adopt polyvinyl chloride paste resin, a plasticizer, a modified ultraviolet absorbent, thermoplastic wires, a thermal stabilizer, ultra-fine calcium carbonate, nanometer calcium carbonate, an adhesive, a halogen-free phosphorus flame retardant, ammonium molybdate, hollow micro glass beads and hollow ceramic powder as raw materials, and the second coatings adopt the polyvinyl chloride paste resin, the plasticizer, the modified ultraviolet absorbent, thethermoplastic wires, the thermal stabilizer, the ultra-fine calcium carbonate, the nanometer calcium carbonate, the halogen-free phosphorus flame retardant, the ammonium molybdate, the hollow micro glass beads and the hollow ceramic powder as the raw materials. The invention also provides a preparation method of the coated cloth for car covering. The invention not only has good folding endurance,but also has the advantages of anti-bacteria, anti-fungus, durable use, low cost, and the like.