The invention relates to a role switching method for time synchronization management, and belongs to the technical field of time synchronization management automation. According to the invention, theexecution tasks of the time synchronization state management process can be intelligently switched according to the change of the main and standby role states; after the main state and the standby state are switched, the monitored task executed in the same time synchronization state management process of the original standby machine can be automatically switched into the monitoring task without manual intervention; and the monitoring task executed in the same time synchronization state management process of the host is automatically switched to the monitored task, so that the manual operationlink that the monitoring task and the monitored task are reversed by the time synchronization management process after main and standby switching is avoided, the operation and maintenance are convenient, and the automation level is improved.