The utility model discloses a novel cable duct, including the cable duct body, the cable duct body includes that two parallel fashioned U type groove, the cable duct body adopts PVC extrusion moulding, the angle end of the U type tank bottom portion of cable duct body is provided with reinforcing rib structure, a cable duct body side is fixed with the connecting piece, the cable duct body prolongsand is provided with a plurality of hollow structure on its length direction. The utility model discloses a novel cable duct can reach bearing capacity and deformation requirement that the standard required, simultaneously because the premium properties and the recycling ability of macromolecular material can reach the environmental protection requirement, and assembles simple to operate.