导航卫星星座系统由于卫星间的相对运动使卫星的相互可见关系不断变化,这给链路选择带来了挑战.本文研究具有同轨及异轨星间链路的导航星座网络,综合考虑星间链路状态,通过比较最短路径方案和K短路径方案,提出了一种考虑波束限制的适用于导航卫星星座的星间链路优化方案,并进行仿真研究,最后得出了有用的结果. Due to the relative movement between satellites, the mutual relationship between satellites is changing constantly, which brings challenge to link selection.In this paper, we study the navigation constellation network with the links between the same track and different tracks, considering the relationship between the stars By comparing the shortest path scheme with the K short path scheme, a scheme for optimizing the inter-satellite link considering the beam limitation for navigation satellite constellation is proposed and simulated. Finally, some useful results are obtained.