The invention relates to a multilayer PVC pipe. The multilayer PVC pipe comprises an upper PVC resin layer, a middle latticed reinforcement layer and a lower plastic thin film layer which are arrangedin sequence. Compared with a traditional PVC pipe, the multilayer PVC pipe has the performance that the strength of extension is high and the like, the lower plastic thin film layer has the excellentwaterproof and antiseptic property, wefts in middle lattices guarantee the bending performance of a pipe material, warps in the middle lattices guarantee the pull-up rate, and the relative density ofthe upper PVC resin layer is small and is equivalent to 1/7-1/4 of that of metal; the electrical insulation property and the chemical stability are excellent; installation and construction are convenient, and maintenance is easy; the unit energy consumption is low, in the extruding process, the temperature is continuously changed, conditions are provided for molding, heat expansion and cold contraction are carried out many times, and materials can be combined more tightly through contraction and expansion.