Polyvinyl chloride insulation sheath-free cable

The utility model discloses a polyvinyl chloride insulation sheath-free cable which comprises power transmission lines and signal transmission lines. The power transmission line comprises a copper core, a high-temperature-resistant layer, a first shielding layer and an insulating layer; the copper core is formed by twisting more than one copper wire, a high-temperature-resistant layer is arranged around the copper core in a surrounding manner, the high-temperature-resistant layer is made of a high-temperature-resistant soft material, a first shielding layer is arranged around the high-temperature-resistant layer in a surrounding manner, and an insulating layer is arranged around the first shielding layer in a surrounding manner; the signal transmission line comprises a signal line and a second shielding layer, the signal line is wrapped by the second shielding layer, and the second shielding layer is embedded in the insulating layer; the problem that in the wiring process of existing home decoration wires and