硬X射线调制望远镜(HXMT)卫星是中国首颗空间X射线天文卫星.为充分利用卫星资源,使科学产出最大化,需要进行长期任务规划.长期任务规划是一个复杂的多目标优化问题.通过分析HXMT观测特点和约束条件,建立了HXMT长期任务规划问题模型,并采用贪婪算法加遗传算法对模型进行求解.实例分析结果表明该方法能够有效解决HXMT长期任务规划问题. Hard X-ray modulation telescope (HXMT) satellite is China’s first space X-ray astronomy satellite.To make full use of satellite resources to maximize scientific output, long-term mission planning is needed.Long-term mission planning is a complex multi-objective optimization problem. By analyzing the characteristics and constraints of HXMT, a long-term HXMT mission planning problem model is established, and the greedy algorithm and genetic algorithm are used to solve the model.Example analysis shows that this method can effectively solve the HXMT long-term mission planning problem.