The embodiment of the invention discloses a remote upgrading method and device for an IPMC program of an ATCA structure. The method includes the steps that a master card in an ATCA computer case obtains the IPMC upgrading program from a server; the master card executes the upgrading program and sends an upgrading control command to a slave card; the slave card receives the IPMC upgrading command sent from the master card, downloads the upgrading program from the master card through a base channel bus in a parallel mode and executes the upgrading program of the slave card. By means of the remote upgrading method and device, the transmission efficiency of IPMC files is improved greatly, all single boards are made to be independent to one another and upgraded in a parallel mode, the required time in upgrading is reduced, and upgrading efficiency is greatly improved.