The invention discloses a superconducting strand. The superconducting strand comprises a superconducting strand wire core, a metal foil, a metal filler and a metal pipe sleeve. The superconducting strand wire core comprises four identical secondary wire cores. Each secondary wire core comprises a superconducting strip and a metal strip. The superconducting strips and the metal strips are alternately stacked. The outer surface of the superconducting strand wire core is coated with the metal foil. The outer surface of the metal foil is coated with the metal pipe sleeve. The metal filler is arranged between the metal pipe sleeve and the metal foil. By adopting the superconducting strand provided by the invention, the stability of the conductor can be enhanced while the engineering current density is improved.