The present invention discloses an aerial insulation cable material made from the following raw materials by weight: 60-80 parts of SG-3 type PVC (polyvinyl chloride), 20-30 parts of low density polyethylene, 15-25 parts of ethylene-vinyl acetate copolymer, 10-15 parts of bisphenol A type polycarbonate, 15-20 parts of magnesium hydroxide, 5-10 parts of butyl stearate, 4-8 parts of rapeseed oil, 1-2 parts of barium stearate, 2-3 parts of calcium stearate, 3-5 parts of diphenyl isooctyl phosphate, 4-6 parts of 2,2'-ethylenedioxydiethyl bis(2-ethylhexanoate), 8-12 parts of nano sepiolite powder, 15-25 parts of carbon black N660, 5-8 parts of a composite filler, 1-2 parts of catechol, 1-2 parts of dibutyltin dichloride and 5-10 parts of dibutyl isophthalate. The aerial insulation cable material is stable in quality, reliable in performance, excellent in weather resistance, aging resistance and electrical properties, good in toughness, tensile strength, and high temperature resistance, excellent in machining performance, and suitable for 1KV and below aerial cable insulating layers.