Automobile wire harness is the main body of automobile circuit network, and there is no automobile circuit without wire harness. Wire harness refers to a component that is connected to a circuit after the contact terminal (connector) made of copper is crimped with a wire and cable, and then plasticized to an insulator or an external metal shell. Wire harness industry chain includes wire and cable, connectors, processing equipment, wire harness manufacturing and downstream application industry, and wire harness is widely adopted in automobiles, household appliances, computers and communication equipment, various electronic instruments and meters and other aspects. The body wire harness is connected to the entire body, and the general shape is H-shaped.