The invention relates to a vehicle CAN bus network matching device, belonging to the technical field of vehicle electric systems. According to the vehicle CAN bus network matching device, a dedicated network cable resistor plug is designed so that a CAN bus matching resistor does not need to be mounted in a bus terminal component but is directly bound and fixed together with a cable on the vehicle; therefore, during a test in a wheel type vehicle, if any bus terminal component in a vehicle bus network fails or is removed, the use of the vehicle bus network is not influenced, the network cables are convenient to overhaul, and the CAN bus matching resistor is simple and quick to repair and replace; and meanwhile, since the matching resistor is positioned in the dedicated protection cover of special design and protected from external environment, the high reliability is further verified through the real-vehicle test.