A connection cable for a control cabinet relates to the technical field of cables. The cable comprises a plurality of strands of finely-twisted bundle fine bare copper wire conductors, core insulation layers, a covering layer and an outer sheath, wherein a left self-supporting steel cable and a right self-supporting steel cable are equal in length with the cable, are coated by the sheaths and are arranged in parallel, and the sheaths are integrally connected with the outer sheath. According to the invention, two zero-torque elf-supporting steel cables are adopted and tensile force is generated in the operation, so that the cable has stronger tensile property, is not easy to fracture, is suitable for various climate conditions, and has a prolonged service life.