The invention relates to a static var compensator (SVC) control object conversion system. According to the technical scheme provided by the invention, conversion of a control object between an SVC and automatic voltage control (AVC) is realized, and the SVC can be enabled to control the object to be switched between several objects including a voltage control object in case of voltages exceed a threshold, a voltage control object issued by the AVC and a reactive power control object issued by the AVC. The rapid response feature of the SVC can be fully utilized, the capability of the AVC in coordinating and balancing reactive voltages between multiple transformer stations of a whole network or a certain region can be brought into play, and at the same time, consideration is also given to such two modes in which the AVC respectively issues a reactive command and a voltage command to the SVC.