The invention discloses an anti-rat-type PVC cable material and a preparation method. The material is prepared by the following raw materials by weight: 75 to 95 of XS-2-type PVC, 20 to 30 of metallocene linear low-density PE, 5 to 10 of MBS, 10 to 20 of antimony trioxide , 8 to 12 of brucite powder, 20 to 30 of carbon block N330, 2 to 3 of a calcium zinc composite stabilizer, 0.5 to 1 of stearic acid, 2 to 3 of sulphur, 3 to 5 of zinc oxide, 10 to 15 of nano wollastonite powder, 12 to 18 of epoxidized soybean oil, 10 to 15 of chlorinated paraffin, 8 to 12 of dioctyl sebacate, 5 to 10 of diisodecyl phthalate, 2 to 3 of an anti-rat agent M-17, and 5 to 10 of composite filler. According to the cable material of the invention, excellent anti-rat performance is provided, fire accidents and economic loss caused by rat bite can be effectively prevented, the material is environmental-friendly and safe, the physical and mechanical performance is more reliable, good flame retardant performance is provided, and better low-smoke and low-toxic properties are provided.