Under the background of urbanization,the migrant farmers break the existing boundary line.Farmer,community and service are divorced,which causes low efficiency or invalidity in management and service.It is because the household registration system and the supply mechanism of single project respectively specify and restrict the location and content boundary of community service,which causes the contradiction between the increasingly frequent mobility and heterogeneous differentiation farmers’ demand.Therefore,fiscal and taxation system and democratic mechanism need to reform so as to realize the seamless connection between community service and mobile urban and rural residents.And community service based on residence should also be established in order to achieve the combination of farmer,community and service again.