High-speed signal transmission cable and assembling method thereof

The invention belongs to the technical field of electrics, and particularly relates to a high-speed signal transmission cable and an assembling method thereof, and the high-speed signal transmission cable comprises a cable plug which is used for connecting a wire and equipment; the cable sheath wraps the outermost layer of the cable and is used for protecting and fixing an inner-layer wire of the cable; the shielding layer wraps the secondary outer layer of the cable and is used for isolating external electromagnetic radiation and preventing internal signals from radiating outwards; the isolation framework clamps the multiple groups of twisted-pair conductors and the grounding conductor in the groove and is used for keeping the positions of the multiple groups of twisted-pair conductors and the grounding conductor fixed; the multiple groups of twisted-pair wires are twisted anticlockwise in a high-density manner, so that mutual crosstalk of signals can be reduced; in the cable assembling process, the surface