Abstract: Using data from China Family Panel Study in 2014，we examine the prevalence and so- cial determinants of cohabitation in China. Descriptive results show that，although only about 10 percent of Chinese adults born before 1980 cohabited before first marriage，cohabitation has grown sharply among recent birth cohorts. Based on the“developmental idealism”perspective and Chinese social contexts，we propose that ideological changes and institution changes are the major driving forces of the emergence of cohabitation. Multivariate analysis shows that birth cohort，educational attainment，living in urban areas，migration，party membership，and regional development have significant effect on premarital cohabitation. Taken as a whole，our study of cohabitation helps advance our understanding of family changes in China.

Keywords:  Cohabitation, Family Ideology, Developmental Paradigm, Second Demographic Transition

摘要： 文章分析 2014 年中国家庭追踪调查数据，考察我国男性与女性初婚前同居的状况 及其影响因素。结果表明，我国居民中具有初婚前同居经历的比例约为 10%，且这一比例在较年轻的 群体中更高。在最近结婚的人群当中，同居比例达到 1/3 以上。根据发展范式这一理论框架，结合我 国的社会情境，文章提出，人们观念的改变与制度的变化是造成我国同居比例上升最主要的推动力。 多元回归分析的结果表明，出生世代、教育程度、城市生活经历、流动经历、党员身份和居住地经济发 展水平这些因素，对我国居民是否具有初婚前同居的经历均有着显著的影响。文章对同居的分析能 够帮助我们更好地理解当前我国初婚年龄的推迟等婚姻与家庭领域中发生的变化。

关键词: 同居, 家庭观念, 发展范式, 第二次人口转变