The invention discloses a special high-efficiency and energy-saving enameled and stranded wire cable and a manufacturing method thereof. The cable is a novel product capable of increasing the perimeter of the cross sections of conductors, and the manufacturing method is a novel method. The technical means such as hole shrinkage, root increase, ellipse perimeter increase and insulation and isolation perimeter increase are adopted on the basis of the prior art, so that the perimeter of the conductors is increased greatly. Particularly, in a stranded wire range, the perimeter of the total cross sections of the conductors is increased greatly, so that the surface areas of the conductors are increased greatly, the heat dissipation efficiency of the conductors is improved, the resistance of the conductors is reduced, the conduction efficiency of the conductors is improved greatly, the line loss is reduced, the voltage quality is improved, a raw material is saved, and the electric energy is saved. Figure 10 is effect representation after three technical measures are taken. A rule is found that the maximum alternating current allowed to pass through the conductors is directly proportional to the perimeter of the cross sections of the conductors. The rule is a great discovery in physics; a theoretical foundation is laid for researching and developing the wire cable and more efficiently utilizing the electric energy; and the wire cable and the method have significant economic and social benefits.