The invention provides a cable insulation cladding material, which is prepared from the following components by weight: 20-30 parts of polyvinyl chloride, 3-5 parts of ceramic micropowder, 15-25 partsof modified alkyd resin, 10-20 parts of phenolic resin, 5-30 parts of potassium humate, 4-6 parts of polyethylene wax, 2-5 parts of cellulose acetate, 1-2 parts of zinc borate, 1-2 parts of a coupling agent, 3-5 parts of epoxidized soybean oil, 4-10 parts of modified pitchstone, and 5-10 parts of an anti-aging agent, and preferably also includes 5-10 parts of xylene and 20-30 parts of polycarbonate. Preferably, the anti-aging agent is made from the following components by weight: 350-400 parts of an acrylic resin aqueous solution, 200-250 parts of a zeolite powder suspension, 3-5 parts of maleic anhydride, and 5-10 parts of polypropylene glycol. Preferably, the coupling agent is titanate, aluminate, zirconate or borate. Preferably, the mass ratio of cellulose acetate to zinc borate is 1:1. The cable insulation cladding material provided by the invention has the characteristics of reasonable raw material selection and blending, safe use and excellent aging resistance, solves the problem of easy aging of a cable cladding layer, can prolong the service life, has good insulation performance, and also has excellent thermal stability at the same time.