Abstract:Because of the poor social security in rural areas of China,reverse mortgage of contractual right of land can,to a certain degree,make up the shortage of fund for new type rural social security system and improve the social security level of the aged people in the countryside.Based on relative experience of foreign countries,this paper analyzes the feasibility of reverse mortgage of rural contractual right of land from legal,economic and social aspects.This paper then analyzes the legal impediment to fulfil this system which includes whether or not this system will attack public ownership,whether or not it will deviate from inter-generational equity and imcomplete legal supporting measures.Consequently,this paper explores the legal institutional design on how to break through the legal impediment in accordance with such clues as nature of right,subject of right,object of right,content of right and duration of right.