Drawing on the Sample Survey in Five Big Cities in China in 2006,this paper finds that social inclusion of rural-urban migrants,as a complicated process,is mainly affected by seven factors,inhabitation,community,and economic,social and human capital,employment,and health. Based on such findings,it proposes the model of social policy system for social inclusion to respond to rural-urban migrants’ basic needs and solve the problem of social exclusion. As for policy implication,the article concludes that policy for social inclusion of rural-urban migrants should be taken to reduce the structure exclusion and improve social integration. At the same time,community work should be developed effectively to build up social context of migrant policy implementation,and to improve social service delivery.