本文基于Sen的可行能力理论及北京市调查数据,对进城务工人员福利水平进行了较为全面的评价。研究发现,2008年进城务工人员综合福利指数为0.3188,处于福利评价的低水平阶段;除经济资源和健康状况方面的福利状况达到较高水平阶段外,其他功能性活动均处于中、低水平阶段。与2008年相比,2012年进城务工人员在社会保障、心理条件、社会资本等方面的福利状况均有所改善。防护性保障和社会资本的边际改善对进城务工人员总福利水平上升的影响最大。 Based on Sen's Feasible Competency Theory and Beijing survey data, this paper makes a comprehensive evaluation of the welfare level of migrant workers. The study found that in 2008, the composite welfare index of migrant workers in cities was 0.3188, which was at the low level of welfare evaluation. All other functional activities were at medium and low levels except for welfare resources in terms of economic resources and health status. However, stage. Compared with 2008, the welfare status of migrant workers in urban areas in terms of social security, psychological conditions and social capital increased in 2012. Protective protection and marginal improvements in social capital have the greatest impact on the overall welfare of migrant workers.