Aiming at the military requirements for equipment support command, analyze the traits of MGIS and Beidou navigation locating system, then present a design method of equipment support command automation system based on MGIS and Beidou navigation locating system. It integrates computer technology, MGIS, and CNSS. Thus, it helps both in the automation and digitalization of military equipment support. The result shows that the technology aforesaid enables location data to mach E-map instantly and accurately, so that commanders have a more comprehensive and profound understanding of the battle environment, with a view to strengthen the overall control and management of the equipment support and enhance its efficacy.