The invention provides an irradiation crosslinking low-smoke and halogen-free flame retardant cable material. The cable material is prepared from the following raw materials, by weight, 100 parts of ethylene propylene diene monomer, 60-80 parts of high-density polyethylene, 9-11 parts of a maleic anhydride grafted polyolefin elastomer, 0.2-0.4 parts of an ultraviolet ray absorber UV-9, 10-20 parts of an EVA resin, 8-10 parts of aluminum hydroxide, 0.5-1.0 part of butyl stearate, 1-3 parts of zinc stearate, 0.2-0.5 parts of dicumyl peroxide (DCP), 1-2 parts of TAIC, 4-6 parts of zinc oxide, 0.5-1.0 part of molybdenum trioxide, 30-50 parts of carbon black N3393, 10-13 parts of nanometer calcium carbonate, 0.5-1.0 part of an antioxidant 4020, 0.1-0.3 part of an antioxidant MB, 8-10 parts of triphenyl phosphate, 12-15 parts of antimony (III) oxide and 6-8 parts of zinc borate hydrate. The cable material has the advantages of excellent flame retardation, very less smoke in combustion, no generation of toxic gases or corrosive gases, good weatherability, good abrasion resistance, good insulation property, and ultraviolet resistance.