Automotive wiring harness is the main body of automotive circuit network. Without wiring harness, there is no automotive circuit. Wire harness refers to the components that contact terminal (connector) made of copper material is crimped with wire and cable, and then the insulator or external metal shell is molded on the outside to form the connection circuit with wire harness. The wire harness industry chain includes wire and cable, connector, processing equipment, wire harness manufacturing and downstream application industries. The wire harness is widely used in automobile, household appliances, computer and communication equipment, various electronic instruments, etc. the body wire harness connects the whole body.