The existence of large numbers of files in a dispatching automation system asks for easy and reliable ways of their management.Based on an analysis of the types and characteristics of the dispatch automation system files，a lightweight method for file management using the local file system directly to manage files is proposed.A strategy based on log files is engineered to maintain file consistency while a synchronous lock is adopted in the file synchronization process to resolve standby machine switching that may lead to data inconsistencies.This method is applied in a dispatching automation system.