The invention discloses a switchboard remote target terminal automatic-upgrading method and a system thereof, wherein, the system comprises a control terminal and at least one target terminal, and the control terminal and the target terminal are communicated with each other through switchboard communication programs, the method mainly comprises steps of the control terminal preparing a version file with a version number, enquiring the target terminal and version information thereof, selecting an target terminal to be upgraded and version number thereof, sending the version download information of the target terminal and the version number thereof to the target terminal, after the target terminal returning a confirmation message, the control terminal sending the version files to the target terminal: after the target terminal receiving the version files, the control terminal sending a version replacement command to the target terminal, the target terminal decompressing the version files and replacing the old version. According to the invention, because the updating can be performed automatically without the appearance of attendants, man power expend can be reduced, the whole cost is saved, version files upgrading speed of the target terminal is increased, the up-to-date version can be used in time and satisfaction degree of users is improved.