Abstract: According to the differences between consanguineous and geographical structures,China's rural society can be divided into three ideal types:the united village in the south,the divided village in the north andthe dispersed village in the middle.The social structure of the village mainly shapes the formation logic of bachelors from two dimensions:the degree of family support for marriage and the degree of village rejection.To be specific,in the northern divided villages,the parents' support for their children's marriage is the strongest,and the social rejection to bachelors is the strongest in the villages,so the probability of being bachelors is the least.In the united villages in the south,the parents' support for their children's marriage is general,and the bachelors are mainly structurally protected by village society,so the probability of being bachelors is the second.In the dispersed villages in the middle,the parents' support for the marriage of their children is the weakest,and the village society has less rejection to bachelors,so both the probability of being bachelors and the number of bachelors are the largest.The sociological analysis of the regional differences of rural bachelors constructs a middle-level theoretical framework for the study of bachelors,which is of great significance to the social policy intervention of bachelors' crisis.

Key words: bachelor, regional differences, village social structure, intergenerational support, village rejection