Flame-retardant composite cable

The utility model discloses a flame-retardant composite cable, and belongs to the technical field of cables. The cable comprises a two-core single-mode optical cable, two coaxial cables, two data cables and an outer sheath outside the two data cables which are spirally twisted, the two coaxial cables are arranged in an 8 shape, the two data cables are located on the two sides of the coaxial cablesrespectively, and the two-core single-mode optical cable is located among the coaxial cable, the data cables and the outer sheath. The two-core single-mode optical cable comprises two single-mode optical fibers arranged in an 8 shape and a first inner sheath layer outside the two single-mode optical fibers; a plurality of aramid yarns are uniformly filled between the single-mode optical fibers and the first inner sheath layer; the coaxial cable comprises a copper-clad steel conductor, a foaming insulating layer, a single-sided self-adhesive aluminum foil layer, a first tinned copper wire braid layer, an aluminum foil