The invention discloses an automobile high-voltage wire harness assembly and relates to the technical field of automobile circuits. The automobile high-voltage wire harness assembly comprises an outerleather sheath, a protective sleeve body and four high-voltage wires, the protective sleeve body is located inside the outer leather sheath, one side of the top of the surface of the outer leather sheath is fixedly connected with a first connecting sleeve, and the other side of the top of the surface of the outer leather sheath is fixedly connected with a second connecting sleeve. According to the automobile high-voltage wire harness assembly, an automobile wire harness is well wrapped and well protected, when the wire harness needs to be replaced, an auxiliary tool does not need to be used,the outer leather sheath can be manually removed, using by an operator is facilitated to a great extent, a great insulation effect is achieved, the phenomenon of electric leakage of the internal wiresis well avoided, meanwhile, great flame-retardant and anti-corrosion effects are achieved, the service life of the wire harness is prolonged to a great extent, and the wires are separated and thus well combed.