中文摘要：

随着空间大地测量精度的提高与需求的发展，地心运动的研究与监测日益重要，它是精确实现地球质心参考框架的关键之一．本文详解了地心运动的原因（地球系统中的质量迁移）及对空间大地测量与地球物理学的影响，总结了常用的四种地心运动监测方法（网移动法，运动学法，动力学法和一阶形变法）及部分成果和应用，讨论了各方法和SLR，DORIS，GPS和VLBI四种空间大地测量技术在地心运动监测中的特点，并给出了一些削减误差的建议．为满足地球动态环境研究的需要，地心运动监测的精度与可靠性仍需进一步提高，这依赖于观测精度的提高，地球物理模型的完善和数据处理方法的发屁

英文摘要：

With the precision improvements and application requirements in space geodesy, research and estimation of the geoeenter motion become increasingly important as they are the key points to realize a reference frame with its origin fixed to the center of mass of the Earth system. In this paper, we first analyze the causes of geocenter motion（mass redistributions in the Earth system） and its implications in space geodesy and geophysics, then we summarize four approaches（i, e. network shift approach, kinematic approach, dynamic approach, degree- 1 deformation approach） to estimate geocenter motion and some of their results and applications, in the end, we discuss the characteristics of the four approaches and some space geodetic techniques （i. e. SLR, DORIS, GPS, VLBI） in measuring geoeenter motion, we also give some adviees to reduce errors. To improve the accuracy and precision of geocenter motion, we need to improve the precision of observations, take into account of more geophysical factors, and pursue an innovative approach to process the data.