Novel low-smoke halogen-free fire resistant railway traffic digital signal cable

The utility model relates to a novel low-smoke halogen-free fire resistant railway digital traffic signal cable comprising a conductor, an insulating layer, a shielding layer and a protective sleeve. The novel low-smoke halogen-free fire resistant railway traffic digital signal cable is characterized in that the outer surface of the conductor is provided with the insulating layer; a wire group of two conductors provided with the insulating layers is sequentially provided with a wrapping layer and an inner shielding layer so as to form a wire group cable; and a cable core formed by stranding of a plurality of wire group cables is sequentially provided with a water-blocking tape layer, an outer shielding layer, an oxygen barrier layer, an armor layer, a protective sleeve cracking resistant layer and a protective layer. The novel low-smoke halogen-free fire resistant railway traffic digital signal cable has the advantages of good shielding effect, high signal transmission capacity, long service life, fire resistance, water resistance and good sun-proof performance.