Abstract:Social structure changing,rural family structure transformation and export of young labors to the developed areas yet just the old and weak left-behind,the rural old-age security model depending on traditional family pension and land endowment is challenged,which is detrimental to the construction of the new socialist countryside and a harmonious society. Based on the data concluded from the structured interviews on the whole old-aged of Gan Village,this paper probed into the problem by means of quantitative analysis and comparative study and in turn proposed a new rural security model combining tradition and the contemporary system for the old-age. It is a new model named Triangular System with several elements,including agricultural technology education,popularization of the policy of sound child rearing,enhancement of social security for the old,the new model of land transfer,commercial insurance for serious illness and accident insurance.This new model aims to steadily propel the construction of a new social security system based on state responsibility.