The invention discloses a heat-resistant stretch-resistant modified polyurethane rubber cable material. The cable material is prepared from the following raw materials: modified polyurethane, neoprene, ethylene propylene rubber, carboxyl-terminated nitrile rubber, ethylene propylene diene monomer, epoxy resin, ethyl acetate, poly(tetrahydrofuran) glycol, trimethylolpropane, polypropylene, ethylene glycol, tertiary amine, 1,4-methyl isocyanate cyclohexane, fumed silica, aluminum silicate, stearic acid, molybdenum disulfide, quartz powder, bentonite, zinc oxide, sulfur, magnesium oxide, a plasticizer, a stabilizing agent and an anti-aging agent. The modified polyurethane rubber cable material has excellent heat resistance and stretch resistance.