The invention relates to a PVC (
polyvinyl chloride) formula which is prepared from the following raw materials in parts by weight: 50-70 parts of high-
polymerization-degree PVC resin, 30-50 parts of low-
polymerization-degree PVC resin, 100 parts of high-
polymerization-degree resin and low-polymerization-degree resin, 30-40 parts of a dioctyl 
phthalate (DOP) 
plasticizer, 1-3 parts of an organic 
tin heat stabilizer, 0.5-1.5 parts of a G70S 
lubricant, 1-2 parts of tetrakis [beta-(3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid] 
pentaerythritol ester, 1-2 parts of 2-hydroxy-4-N-octyloxybenzophenone, 0.1 part of octadecanamide, and 1-3 parts of a 
processing aid. The invention has the beneficial effects that the plasticizing temperature during PVC 
processing is reduced, the 
melt viscosity is reduced, the plasticizing 
processing performance of the material is improved, and the surface quality of the product is improved. moreover, the 
aging resistance and 
oxidation resistance of the PVC product are improved, the failure process of the PVC product is slowed down, the service life of the product is guaranteed, and the PVC product is low in cost and suitable for popularization and application.