首先分析了天基动能武器对地攻击作战流程,其次研究了椭圆轨道二次变轨对地攻击模式,对第一次变轨操作、第二次变轨操作、落点误差等内容进行了建模分析,给出了动能武器打击目标所需时间的计算方法,最后利用STK对天基动能武器椭圆轨道二次变轨对地攻击模式进行了仿真,仿真数据分析结果表明了该方式对地攻击的有效性。 Firstly, the operational processes of space-based kinetic energy weapons attacking the ground were analyzed. Secondly, the attack modes of the secondary trajectory change of the elliptical orbit to ground were studied, and the contents of the first orbital change operation, Modal analysis, the calculation method of kinetic energy weapon target strike time is given. Finally, STK is used to simulate the earth attack mode of space orbit kinetic energy weapon elliptical orbit twice orbit change. The simulation results show that the mode attack on the ground Effectiveness.