Abstract:Developing elliptical orbit communication satellite is powerful complementarity for traditional communicate satellites, and it can also supply platform for validation of elliptical communicate satellites which makes deep sense. For realization of real time communication in focused zone, an improved genetic-algorithm was given. The article analysed planes of orbit and position of all satellites, designed method of unit coding, and created arithmetic operators to keep result excellent. The emulation result showed that the algorithm can realize real time communication, and it has fast convergence velocity and good stability.