Method and system for reprogramming electronic control unit (ECU)

The embodiment of the invention discloses a method for reprogramming an electronic control unit (ECU). The method comprises the following steps of: establishing a communication link between a recommended standard 232 (RS232) serial port of reprogramming equipment and a local interconnect network (LIN) transceiver on the ECU, wherein the RS232 serial port and the LIN transceiver have compatibilityon the basis of hardware; and reprogramming the ECU by using the reprogramming equipment. By the method, the reprogramming efficiency of the ECU can be improved, and the reprogramming cost of the ECUcan be reduced.