The invention discloses a method and a device for manufacturing a cable by using micro steel wires. The method comprises the following steps: stacking and paying off, wire separating and
combing,
tension control, stranding, winding, clamping and pulling,
cutting and taking up, wherein in the step of stacking and paying off, the
diameter of the steel wire for paying off ranges from 0.03 mm to 3.0 mm, and spools are adopted for paying off and are arranged in a multi-layer and multi-column stacking mode; in the step of wire separating and
combing, at least four wire separating and
combing discs are adopted and evenly arranged between paying-off and stranding at intervals, and all the wire separating and combing discs sequentially deflect by an angle along the axis, so that the steel wires are adjusted step by step in the circumferential direction for multiple times, and thus a
torsional angle is achieved through accumulation; wire holes are uniformly formed in the wire separating and combing discs, the wire holes are in fillet transition, and R is larger than 10 mm; and the wire separating and combing discs are made of a non-steel material. According to the method, the ultrahigh-strength fine steel wires are used for manufacturing the cable, under the same cable force requirement, the cable strand sectional area (
diameter) is reduced, the
porosity is reduced, the cable strand compactness is improved, meanwhile, the cable strand
dead weight is reduced, and the spanning capacity of the cable is enhanced.