Abstract: CFP (common focus point) technology is analyzed from software program aspect, especially imaging technology and processing algorithm is summarized, and a seismic data processing flow is given based on CFP technology. The processing system is developed by utilizing the stable and high efficient features of Linux operating system, combined with a cross-platform Qt graphical user interface software library, written by mixed programming languages including C/C++ and FORTRAN, and designed by the multi-tread and object-oriented programming, etc. The processing system provides a solution for the development of other seismic data processing software.