Environment friendly nano composite high polymer electric cable

The invention discloses an environment-friendly nano-composite polymer power cable. Multiple insulated conductors are intertwisted to form a cable core; a packing layer is arranged in a cable core gap; each insulated conductor consists of a conductor, a mica wrapped refractory layer and an insulating layer from inward to outward; the cable is characterized in that the insulating layer is manufactured by adopting a polyethylene montmorillonite nano-composite; and a waterproof polyester tape, a halogen-free glass fiber tape, a mica tape refractory layer, an oxygen insulation waterproof layer, a stainless steel strip armored layer and a restrictive coating successively covers outside the cable core and the packing layer. The cable has the advantages of high environmental protection performance, good ant and rat prevention performance, fire performance and radial and axial waterproof performance and the like, and high mechanical strength; and during burning, little smoke and no harmful haloid acid substance is produced.