Clock synchronization method and device, communication board, household appliance and storage medium

The invention discloses a clock synchronization method and device, a communication board, a household appliance and a storage medium, and belongs to the technical field of electronic control, and the method comprises the steps that the communication board is connected with a communication bus, when header information on the communication bus is monitored, a synchronization field in the header information is monitored, a target communication rate is determined according to the synchronization field, and the target communication rate is sent to the communication board; and performing clock synchronization based on the target communication rate. According to the invention, by introducing the synchronous field during bus communication, the communication board can monitor the target communication rate of the main control board in real time for clock synchronization, so that the clock synchronization of the communication board and the main control board can be realized, and the accuracy of signal receiving is impro