Abstract: Drawing upon data from marriage registration，this paper examines recent trends in the average age at first marriage of newly married population in the past eight years in Beijing．The male's average age at first marriage stood at 28．05 years and stayed rather stable，while the female' s averaged at 26．21 years but shows a significant increasing trend．Analysis by migration type demonstrates that the average age at first marriage of migrants ( hukou in Beijing but native place not in Beijing) is significantly higher than the average level of all，which pushes up the general average age at first marriage． The average age of newly married male floating population ( hukou not in Beijing) is similar to that of the migrants and also lifts up the general average marriage age，but the impact of female floating population is opposite．Moreover，because of the gender difference in terms of the proportion of cross household registration intermarriage，female local population suffers to certain extent some marriage squeeze．Under the influence of marriage gradient and matching customs of“older husband with younger wife”，the average age at first marriage of female local population in Beijing may be further delayed in the long run．

Keywords: Average Age at First Marriage, Population Migration

摘要：  基于婚姻登记业务数据,计算和分析了近8年来北京市初婚人群的平均初婚年龄:男性的平均初婚年龄为28.05岁,且在时序上基本保持稳定;女性平均初婚年龄为26.21岁,但在时序上具有明显的递增趋势。区分人口流迁类型的分析显示,迁移人口(京户非京籍)的初婚年龄显著高于平均水平,对总体的平均初婚年龄起到拉升作用;男性流动人口(非京户)的初婚年龄接近迁移人口,也推高了总体的平均初婚年龄,而女性流动人口的作用则相反。此外,由于跨户籍通婚比例的性别差异,女性本地人口(京户京籍)受到一定的婚姻挤压,同时受择偶梯度和男性"年龄向下婚"习惯的影响,从长期看北京本地女性的初婚年龄很可能会进一步推迟。

关键词: 平均初婚年龄, 人口流迁