The present invention of halogen-free, expansive, flame-retardant, cable material and its environmental-protection-type cable belong to cable field. The halogen-free, expansive, flame-retardant, cablematerial includes insulated material and sheathing compound; the weight units formula of the insulated material includes: organic montmorillonite with 3-5 units, polyolefin resin with 55-65 units, nitrogen-phosphorus, halogen-free, expansive flame-retardant material with 30-40 units, antioxidant with 0.01-0.02 units, modifier with 5-10 units; adding 1-2 units of natural mouse-ant-dispelling-agentmicrocapsule into the prepared cable material, can prepare the halogen-free, expansive, flame-retardant, mouse-ant-defending, cable sheathing compound. The cable's insulated layer can select generalcrosslinking polyethylene or the halogen-free, expansive, flame-retardant, insulated, cable material in the present invention; the cable's sheathing layer selects the halogen-free, expansive, flame-retardant, mouse-ant-defending, cable sheathing compound in the present invention. The product of the present invention has the following characters: every electric property of the cable all meets the indexes of national standards; the flame retardancy meets the order of GB/T 19666 combustion test; the amount of smoke is little, while burning the cable, and the transmittance can reach 60-94%; the cable can defend mouse and ant.