2000年以来我国老年流动人口规模迅速增长，这一群体的分布变化关系到公共服务资源的配置和调整，对老龄化社会下相关人口政策的制定会产生重大影响。已有研究缺乏对中国老年流动人口分布演变规律的探讨，且常把老年流动人口等同于老年人口流动进行分析，事实上老年流动人口分布特征是由流动人口老年后的居留选择和老年后才开始的流动迁移选择共同作用的结果，两类选择的空间模式和影响因素均存在较大差异。为此，本项目将基于2000年以来历次人口普查、抽样调查资料和流动人口动态监测调查数据，利用人口统计、空间分析、计量模型等方法，先从整体上把握2000年以来中国老年流动人口分布演化规律，再从流动人口老年后居留选择和老年人口流动迁移选择两个维度剖析各阶段中国老年流动人口分布形成的直接原因，并通过分析流动人口老年后居留选择和老年人口流动迁移选择的影响因素，进一步把握中国老年流动人口分布变化的形成机制，最后提出相关政策建议。

Since 2000, the scale of China's elderly floating population has grown rapidly. The distribution of this group is related to the allocation and adjustment of public service resources, which will have a great impact on the formulation of relevant population policies under the aging society. There is a lack of research on the evolution of the distribution of China's elderly floating population. Meanwhile, the literature often equates the elderly floating population with the elderly population flow analysis. In fact, the distribution characteristics of the elderly floating population is the result of the residence choice of the floating population after the old age and the migration choice of the elderly people. These two choices have large differences in migration patterns and influencing factors. Based on the census data and China Migrants Dynamic Survey since 2000, this project will first explore the evolution of the distribution of China's elderly floating population since 2000, using the methods of demographics, spatial analysis and econometric models. Then, this project will analyze the reasons for the distribution features at various stages by probing into the residence choice of the floating population after the old age and the migration choice of the elderly population. Finally, this project will put forward relevant policy suggestions.