| As the base of rural society stabity,agriculture economy development and famer existence, Land has an important significance to the state, society and the farmers themselves. Because of the natural connection between land and'Three Agriculture', every change that occur in the land will have a great impact. Specially in recently years,With the emergence and activity of Land circulation, a lot of phenomena and problems which base on land circulation arise interesting of people widely, become a research topic of many experts and scholars.Because of the existence of land's social value and shortage of institutionalized social security, For a long time, land takes the function of employment and social security in rural areas. The majority of farmers rely on the land in employment, maintenance, security pension. At same time, due to land taking on the role of the natural protection to famer, it is also contributed to maintain social stability. However,The value of the land is not single.it includes both social value and economic value, has huge potential economic benefits.From the broad sense, Land is not only material guarantee of the farmer's survival, but also the important basis of agricultural economic development. Since the existence of the economic value of land, it promotes the emergence of a land circulation. As the implementation means of economic value of land,the land circulation is bound to take the impact to social value of land. The paper is basing on this perspective, studies the possible implications of land circulation to rural old-age.Firstly,the paper starts from the duality of the land value, introduces the social value and economic value of the land,describes macro effectiveness and performance of the land circulation.The value of land becomes from combination to differentiation gradually, the paper discusses in the changes that the two values of the land and the structure of macro utility of land. At last, it draws the link between the rural old-age security and land circulation from these changes.Secondly, the paper adopts supply-demand theory,structural-functionalism theory and institutional change theory as the theoretical support of the article. They analyze supply situation,supply structure of old-age security and security system change and innovation. as the order of time, It summarizes the practice means of protection of the peasant and land system since the new china's founding. the duty surveies the Q village of Hebei Province, analyzes the situation of the village's old-age supply,macro utility,the willing and behavior of land circulation.Finally, through theoretical analysis, practical induction, comprehensive field research, the article summarizes the findings and obtained conclusions. Moreover, put forward development path and policy recommendations for constructing of rural old-age security under the context of land circulation. |