身份认同是衡量流动人口在心理层面融入城市社会、真正实现市民化的重要指标。对中国人民大学中国农村居民综合调查（2019）问卷数据的研究发现，我国只有不到一半的流动人口实现身份认同，且认同预期得分远低于认同意愿得分；政策制度、社会资本、城市体验等因素对于流动人口身份认同三个维度的影响各有不同，而厘清影响身份认同意愿、预期与结果的原因有助于精准制定加快农业转移人口市民化的政策建议。

The selfidentity measurement is an important indicator of floating population's urban social integration and citizenization at the psychological levelBy studying the data of the comprehensive Survey of Chinese Rural Residents of Renmin University of China in 2019, we found that less than half of the floating population have realized the selfidentity as local residents, and the identity expectation score is far lower than the identity intention scoreInstitutional policy, social capital and life experience play different roles in the three dimensions of selfidentity measurement of floating population, while examining the factors of influencing the identity expectation, identity intention, and identity achievement is helpful to make better policy suggestions for promoting citizenization of floating population