A method and an apparatus for monitoring single board running state are disclosed in the present invention. The above method comprises: establishing an Module Management Controller (MMC) communication channel between a slave board and a master control board when the slave board is powered up; and the slave board reporting running state information of the slave board to the master control board by the MMC communication channel according to one or more preset monitor information points. In the present invention, by the MMC function channel under the uTCA architecture, the slave board reports the master control board the running state of the working process from the moment of being powered-up to the time when the system runs stably, which solves the problem in the conventional art that the monitoring on the single aboard is incomprehensive and can record the running state of the slave board completely.