The invention discloses an automatic management method for micro-grid model version based on svn. According to the method, a model file version management service is created on the basis of a svn tool, a micro-grid model described with the specific model description standard (such as IEC 61968/61970 CIM, E language) is managed, a standard svn interface is adopted for realizing the model version management functions including extraction, comparison and tracking for the model versions of the micro-grid in different periods, the functions of automatic extraction and comparison of the micro-grid model in different periods are achieved and the version management efficiency and automatic level are greatly increased.