The invention relates to a method for manufacturing multifunctional industrial cloth, which belongs to the technical field of textile manufacturing. Choose flame-retardant polyester fiber with a denier of 1000-2000dtex as raw material for weaving, the weaving density is (10-20)×(10-20), and the weight of the base cloth obtained by weaving is 150-450g / m2; Coating, the composition of the coating agent is PVC resin paste, plasticizer, stabilizer, filler and functional additives, the above-mentioned components are fully mixed, ground and filtered to obtain the coating agent, and the cross-linking agent is added during the coating process. After coating, drying, plasticizing and shaping, surface treatment is carried out to obtain the coated cloth, and the coating amount on the base cloth is 100-350 g / m2. The industrial fabric prepared by the invention not only has high strength, but also has functions such as anti-oxidation, anti-aging, anti-ultraviolet, etc., and can meet the requirements of various outdoor environments such as high temperature and high radiation.