Abstract: Based on the CGSS 2018 survey data， regression analysis was applied to study the social class changes of the migrant population. It is found that: economic status is positively correlated with social class changes， and migration characteristics have differential effects on social class changes; mobile population class changes have significant regional heterogeneity， and social class changes are positively correlated with the disparity in economic development levels between regions; women with highly educated urban household registration are more likely to achieve social class leap through spatial migration. It is recommended to build an open urban social system， promote reasonable urban social class mobility， and cultivate civil society identity.

Key words: economic status; migration characteristics; social class; regression analysis

摘要： 基于CGSS2018年调查数据，运用回归分析，研究流动人口社会阶层变动。经济状况与社会阶层变动正相关，迁移特征对社会阶层变动存在差异影响；流动人口阶层变动具有显著的地区异质性，社会阶层变动与地区间经济发展水平差距正相关；高学历城镇户籍的女性更容易通过空间迁移实现社会阶层的跃迁。建议建设开放型城市社会体系，推动城市社会阶层合理流动，培养公民社会认同。

关键词: 经济状况；迁移特征；社会阶层；回归分析