Test system of vehicle network bus

The application discloses a vehicle network bus test system, the test system comprises a test cabinet and a test bench, the test cabinet is in communication connection with the test bench, the test bench comprises at least one fault injection control box, and each fault injection control box is connected with a communication wire harness and a bus controller. According to the test system of the vehicle network bus, the test cabinet and the test bench are arranged, the test bench is connected with the fault injection control box, and the test cabinet can generate the control instruction according to the test case and send the control instruction to the fault injection control box; the fault injection control box can generate the corresponding fault to perform corresponding test on the vehicle network bus, so that the damage to the vehicle network bus is effectively avoided by additionally arranging the fault injection control box, and the fault control is performed through the fault injection control box, so t