Recent years,with the acceleration of Beijing suburban urbanization,many villagers of land acquisition have appeared. With the replacement of the villagers,Da Xin district created"Four Have"work mechanism:focusing on employment,capital,security,and organization. The new work mechanism has shown three breakthroughs:one is keeping on the interaction of production model and the urbanization of the peasants; the second is keeping on the appropriate configuration of the resource and opportunities and the maximization of justice and efficiency; the third is keeping on the combination of service and creativity management and the scientification of the villagers security system. <<