Abstract: The Z-pinch Primary Test Stand (PTS) which has been completed is composed of 24 modules, adopting capacitive storage scheme. It has a large number of control and monitoring nodes. For enhancing transplant and maintainability of server program and debasing exploitation difficulty of client, a control system based upon CORBA Controls Middle Ware is built to realize irrespective characteristic of platform and field of network communication. The application of CORBA technology and the control framework and the structure of PTS control system which has worked stably for one year are studied in this paper. It is a very important reference for building national high power laser equipment, X-ray free electron laser (XFEL) and designing large experimental physics control systems.