The invention discloses a current carrier and a design method thereof. The current carrier comprises a flat metal strip, wherein the metal strip comprises a first bending part, a second bending part and a middle oblique curve segment, the first bending part and the second bending part are at two ends of the middle oblique curve segment, the middle oblique curve segment comprises a front and a back, the first bending part bends toward the front of the middle oblique curve segment, the second bending part bends toward the back of the middle oblique curve segment, and each of the first bending part and the second bending part is provided a through hole. The current carrier is suitable for connection of a high current electrical appliance, particularly suitable for an electrical appliance connection occasion having a distance difference in each direction. The current carrier has an integrated structure, so that the hidden danger of unreliability caused by splicing the carrier with fasteners is eliminated thoroughly, the electrical appliance connection performance between electrical appliances is ensured, and the transmission and distribution system is more stable; and assembling and maintenance do not need a lot of manpower, and high consumption of fasteners is avoided, so that the cost is saved.