The invention relates to a method for manufacturing a busbar by using metal core wires and a busbar manufactured by metal core wires. The busbar can form same-plane bending and different-plane bendingwith diversified bending angles and torsion with predetermined angles at a low cost by using a very simple method, and can maintain the bending shape and torsion shape to meet requirements of variouswiring spaces and wiring paths. Meanwhile, the busbar has the beneficial effects of space saving, good vibration resistance, good bending shape, low cost and high universality.