本文对“神舟”四号飞船轨道舱综合精密定轨专项任务进行了较为全面的介绍。介绍了任务背景、总体技术方案、系统构成和任务的组织结构与分工,并简述了任务的实施情况,给出了定轨结果及综合评价。数据处理结果表明,定轨径向精度在全球范围内优于2 m,满足预定的任务技术指标要求。 This paper gives a more comprehensive introduction to the special task of orbital precision orbit determination for the “Shenzhou” spacecraft IV. This paper introduces the task background, the overall technical solutions, the system structure and the task organization and division of labor, and briefly describes the implementation of the task, given the orbit determination and comprehensive evaluation. Data processing results show that the radial accuracy of orbit determination is better than 2 m in the world, meeting the requirements of scheduled task specifications.