The invention provides a medium-voltage weather-resisting soft cable material and belongs to the technical field of cables. The medium-voltage weather-resisting soft cable material is prepared from the following components in parts by weight: 20 to 45 parts of linear low-density polyethylene resin, 1 to 2 parts of a photoinitiator, 1 to 3 parts of a crosslinking agent, 3 to 5 parts of a silane coupling agent, 3 to 5 parts of an antioxidant, 3 to 8 parts of stearic acid, 1 to 5 parts of epoxidized soybean oil, 10 to 34 parts of ethylene propylene rubber, 2 to 4 parts of nano zinc oxide, 12 to 18 parts of acetylene carbon black, 2 to 4 parts of zinc borate, 2 to 6 parts of an anti-ageing agent, 5 to 8 parts of an accelerant, 15 to 25 parts of precipitated calcium carbonate, 10 to 15 parts ofpottery clay and 5 to 9 parts of magnesium oxide. The medium-voltage weather-resisting soft cable material has excellent ultraviolet radiation resisting performance and good softness and has good physical and mechanical properties and flame-retarding property; the medium-voltage weather-resisting soft cable material is durable, lays a raw material foundation for development of ultraviolet radiation resisting power line protection sleeve, meets UL and European Union ROHS requirements and is environmentally friendly and safe.