Farmer workers become integrated into society in three ways, that is, economically, behaviorally and psychologically. An analysis based on two types of action to obtain resources, homogeneous interaction and heterogeneous interaction, will reveal how the farmer worker will have to construct and develop his heterogeneous social capital in the process of integrating into cities. A characterization of his behavioral integration into cities by measuring his social capital by means of location will reveal the function of “social capital”——a noninstitutional element——in enhancing the farmer worker’s social integration. An empirical analysis of multidimension attributive factors in social integration finds the farmer worker with highquality and highrank social capital can increase his income and improve his identification and urban identification. Behavioral integration affects positively social economic integration and psychological integration, and that social economic integration affects behavioral and psychological integrations in turn. The three dimensions are interdependent, interfunctional and interactional. Based on the above, farmer workers have to break obstruction in working environment, living environment, transformation of social organization and public services to integrate urban society.

farmer worker; social integration; social capital; noninstitutional access