The invention provides a synchronous driving control protecting method and device applicable to an IGBT series power module. The method is characterized in that the signal output of each transmission path is adjusted by sending delaying, so that the inconsistency caused by transmission delay in signal transmission process of a main controller can be removed, and the transmission accuracy can be improved; a multi-way IGBT driver on the same bridge arm is used for synchronously receiving a synchronous lock command released by the main controller based on the fault information and then performing synchronous locking of different IGBTs on the same bridge arm according to the synchronous lock command, thus the synchronous lock command receiving and sending consistency can be ensured, and the IGBT synchronous locking consistency is realized, and moreover, the different IGBTs on the same bridge arm can be synchronously triggered. According to the abovementioned technical scheme, the method and the device have the advantages that the dispersing performance of the IGBT drivers is optimized through the communication between the main controller and the IGBT drivers on the premise that no hardware cost is increased, so that the IGBT triggering and fault protection synchronism can be improved, and the reliability of the IGBT series power module in working can be improved.