The utility model discloses a flexible multicore torsion cable of wind energy, connect including retainer plate, connector lug, fixed column, nut circle, external screw thread, protective sheath, copper core, sleeve, arch, insulation board and copper core. The beneficial effects of the utility model are that: the utility model discloses a be equipped with the arch at telescopic inside wall, and there is the clearance between the sleeve, with the lateral wall of sleeve suit at the protective sheath, the rethread retainer plate is drawn close the gapped one end in sleeve area to axial lead department, make sleeve and protective sheath zonulae occludens through the extrusion, realization copper core joint is connected with the copper core, thereby realize realizing the transport of electric power under the circumstances that the cable is grown inadequately, and the lateral wall at the retainer plate is equipped with the nut circle, it is convenient with being connected between retainer plate and the protective sheath, has good economic and social benefit, and is suitable for being generalized to use.