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CPCI bus is the reinforced edition of PCI bus and is the one of the highest speed peripheral interface bus in computer.In automatic control field of industry, data acquisition and control system is using the mature technique. This paper describes the constitute of the measuring radar and data acquisition and control system structure,and also CPCI bus criterion. The key point is focused on function requirements of display and control software which use Top-Down design method. Display and control software is designed by using multi-thread and double buffer and Active X controls based on MFC in the Visual C++ environment. Display and control software realizes to control the measuring radar, and also to real time store and display raw data of radar echo.