Abstract: The smart substation does follow the IEC 61850standard and its system configuration process,but there exists the problem of version management with its configuration file.By analyzing the relevant provisions of configuration version in IEC 61850Ed.2.0,a method of generating the cyclic redundancy check（CRC）code for the virtual terminal connection configuration is put forward.Based on the standard file version and CRC code,a smart substation configuration file management scheme is put forward to realize simple management of virtual terminal configuration.