当前，我国流动人口出现了常态化和普遍化发展趋势，流动已经成为许多农村地区一种独特的生活方式，人口流动出现了持续的代际传承。在老一代流动人口逐渐被新生代流动人口演替过程中，一个重要的变化就是流动人口中的未婚比例迅速增加，这些正值婚恋黄金时期的新生代流动人口对异性的追求非常强烈。鉴于此，本书以流动人口婚姻为切入点，对流动人口的通婚圈问题进行梳理和解答。本书主要得出以下结论:中国流动人口的通婚圈整体呈不断扩展趋势，跨省婚姻比例随着初婚年份的后移不断扩大，而且人口迁移流动对通婚圈的扩展产生了明显促进作用。在流动人口通婚圈模型中，流动人口的个人特征、流动行为特点两个方面都会对地理通婚圈产生影响。其中，个人特征主要包括流动人口年龄、性别、相对结婚时间、民族、受教育程度和户口性质;流动行为方面因素主要有流动范围、流入地连续居住时间、流入地区类型以及在流入地所从事的职业。而行政边界处特殊的跨区域婚姻对分析结果会带来影响，又建立了流动人口的邻省通婚模型。分析发现:在排除邻省通婚情况下，流动人口的年龄、相对结婚时间、受教育程度、流动范围和流入地区类型对通婚圈具有显著影响。虽然以上分析对象为流动人口，但其中流动前就已经结婚所形成的通婚圈不可能受人口迁移流动行为影响。为此，进一步将研究对象聚焦到调查时点因“婚嫁”而流动的群体中，据此建立婚入样本的地理通婚圈模型。分析发现:流动人口性别、流入地区类型和流动范围三个因素对地理通婚圈具有显著影响。通过不同模型比较发现，与人口迁移流动行为直接相关的流动范围和流入地区类型是最终影响流动人口通婚圈的两个最主要因素。根据该结论，本书提出流动人口地理通婚圈的“空间可及性”概念模型，以解释人口迁移流动范围对通婚圈的影响。

At present, China's floating population has a trend of normalization and universalization, and mobility has become a unique way of life in many rural areas, and population mobility has continued to be passed on from generation to generation. In the process of the old generation of migrants gradually being replaced by the new generation of floating populations, an important change is the rapid increase in the proportion of unmarried migrants in the floating population, and these new generation floating populations in the golden age of marriage and love have a very strong pursuit of the opposite sex. In view of this, this book takes the marriage of migrants as the starting point to sort out and answer the problems of the intermarriage circle of migrants. This book mainly draws the following conclusions: the overall trend of intermarriage circle of China's migrant population is constantly expanding, the proportion of inter-provincial marriage is expanding with the backward year of first marriage, and the migration of population has significantly promoted the expansion of intermarriage circle. In the model of the marriage circle of the floating population, the personal characteristics and the characteristics of the mobile behavior of the floating population will have an impact on the geographical marriage circle. Among them, personal characteristics mainly include the age, gender, relative marriage time, ethnicity, education level and hukou nature of the floating population; Factors related to mobility behaviour are mainly the extent of movement, the continuous length of residence in the place of inflow, the type of area of inflow and the occupation performed in the place of inflow. The special cross-regional marriage at the administrative boundary will have an impact on the analysis results, and a model of intermarriage in neighboring provinces of the floating population is established. The analysis found that the age, relative marriage time, education level, scope of migration and type of inflow area of the migrant population had a significant impact on the intermarriage circle when excluding intermarriage in neighboring provinces. Although the above analysis objects are floating populations, the intermarriage circle formed by marriage before migration is unlikely to be affected by population migration and migration. Therefore, the research subjects are further focused on the groups that flow due to "marriage" at the time of the survey, and a geographic marriage circle model of the marriage sample is established accordingly. The analysis found that three factors, namely the gender of the migrant population, the type of inflow area and the scope of migration, had a significant impact on the geographical marriage circle. Through the comparison of different models, it is found that the flow range and the type of inflow area directly related to the migration behavior of the population are the two most important factors that ultimately affect the intermarriage circle of the migrant population. Based on this conclusion, this book proposes a conceptual model of "spatial accessibility" of the geographic intermarriage circle of migrant population to explain the impact of migration migration on the intermarriage circle.（AI翻译）