High voltage wiring harness for automobiles and traditional low-voltage wiring harness; High voltage wiring harnesses are divided into: AC/DC charging wiring harness assembly, AC/DC connector wiring harness assembly, battery connection wiring harness, motor drive three-phase and controller wiring harness, air pump wiring harness, DCDC wiring harness, air conditioning wiring harness, etc; Traditional low-voltage wiring harnesses are divided into instrument wiring harness, four door wiring harness, roof wiring harness, front cabin wiring harness, motor controller communication wiring harness, battery box communication wiring harness, etc.