The invention provides a high-temperature resistant wear-resistant irradiation cross-linked regenerated-polyolefin/nano-magnesium-hydroxide halogen-free flame-retardant environmental-friendly cable material with high electric properties. The cable material is used for products comprising power cables, mine cables, marine cables, electric equipment lines, locomotive and vehicle cables, and the like. The cable material is produced from following raw materials by weight: 30-40 parts of a regenerated polyolefin, 40-50 parts of a compatilizer, 15-20 parts of an ethylene-propylene-diene monomer (EPDM), 120-150 parts of a nano flame retardant, 3-5 parts of an antismoke agent, 3-3.5 parts of a sensitizer, 1-2 parts of a coupling agent, 1.0-1.5 parts of an antioxidant, 1.5-2 parts of a lubricant and 0.8-2.5 parts of a colorant. According to the cable material and the production method, waste and old plastics are used as the raw materials and an irradiation cross-linking technology and an nano new material are employed, and therefore the cable material has good comprehensive performances comprising high-temperature resistance, wear resistance, high electric properties, oil resistance, high strength, less smoke, no halogen, high flame retardance, good fluidity, etc., and the environmental performance of the cable material meets the requirements of electric wires and cables.