Smokeless flame-retardant waterproof cable material

The invention relates to a smokeless flame-retardant waterproof cable material, and belongs to the technical field of cable material manufacturing. The waterproof cable material comprises the following raw materials in parts by weight: 55 to 95 parts of PP resin, 15 to 30 parts of low-density polyethylene resin, 6.5 to 12.5 parts of an auxiliary agent, 2.5 to 6.5 parts of glass fiber, 0.3 to 1.5 parts of a silane coupling agent, 3.5 to 9.5 parts of modified hydrotalcite, 1.5 to 5.5 parts of an anti-aging agent and 1.5 to 3 parts of a lubricant. The flame retardant property and the waterproof property of the cable material are improved by introducing the auxiliary agent and the modified hydrotalcite into a cable material system, and the modified hydrotalcite has excellent flame retardant property and smoke suppression property, can be stably dispersed in the cable material system and is small in mobility; and the molecular chain of the auxiliary agent contains a large number of silicon-oxygen bonds, so that th