Central maintenance device based on ARINC 659 bus and method thereof

The invention relates to a central maintenance device based on an ARINC 659 bus and a method thereof; the device comprises an ARINC659 bus, a maintained node module, a central maintenance node module, an upper industrial control module, an external communication bus. The central maintenance node module receives a maintenance order of the upper industrial control module through an external communication bus, and transfers the order to the plural maintained node module through the ARINC659 bus; after executing the maintenance order, the maintained node module returns the maintenance response to the central maintenance node module through the ARINC659 bus, and finally the central maintenance node module transfers the maintenance response to the upper industrial control module through the external communication bus, and the upper industrial control module displays the result. A user can complete the maintenance upgrading of software and logics of multiple maintained node modules through a physical topology connec