党的十八届三中全会通过的《决定》和中央城镇化工作会议、中央农村工作会议,都将“推进农业转移人口市民化”确定为我国城市化发展的首要任务,并提出要“全面放开建制镇和小城市落户限制,有序放开中等城市落户限制”、“把进城落户农民完全纳入城镇住房和社会保障体系”。笔者联系东部地区基层实际研究后认为:推进农业转移人口市民化,必须破解城镇保障房建设用地难问题,需要创新城镇建设用地管控机制。一、使进城农业转移人口市民化需建多少套保障房 The “Decisions” and the Central Urbanization Conference and the Central Rural Work Conference passed by the Third Plenary Session of the 18th CPC Central Committee have all identified “promoting the popularization of the population undergoing agricultural transfer” as the primary task of urbanization in China and proposed “We will fully liberalize the restrictions on establishing towns and small cities and orderly liberalize restrictions on settling medium-sized cities ” and “Integrate urban settlers into cities and towns into housing and social security system.” After contacting with the actual research in the grassroots of the eastern region, the author believes that to promote the popularization of agricultural transfer population, it is necessary to crack the difficult problem of urban construction of social security housing and to innovate the management and control mechanism of urban construction land. First, to make the city of agricultural transfer of population to build a number of sets of affordable housing