The invention discloses a fabrication method of a copper-coated aluminum cable, and relates to the technical field of a fabrication method of a metal material. The method comprises the steps of firstly, fabricating a copper-coated aluminum rod by a copper-coated aluminum rod fabrication furnace; secondly, transmitting the fabricated copper-coated aluminum rod to a drawing machine for drawing, anddrawing the copper-coated aluminum rod for many times by the drawing machine to form a copper-coated aluminum wire so that the diameter of the copper-coated aluminum wire conforms to requirement; andfinally, transmitting the fabricated copper-coated aluminum wire to an annealing furnace for processing so that a copper layer wrapping an outer side of an aluminum core and an aluminum core are closely attached to each other to form the copper-coated aluminum cable. According to the method, the copper-coated aluminum composite rod is fabricated by combination of centrifugal casting of copper anddirectional solidification of aluminum; and due to the adoption of a directional solidification technology of the copper-level aluminum core, and the aluminum and the copper are good in interface combination and high in strength.