关键词: 代际关系, 代际功能关系, 社会转型, 家庭

Abstract: Intergenerationalfunctional relationship is an institutional system including obligation，responsibility，right to inheritance，mutual exchange and emotional communication．In the era of the contemporary social transformation，parents spend more money on their children’s education than in the past．Instead，adult children spend less cost to support their elderly parents than in the past．The obligation for adult children to take care of their parents is relatively reduced，but the elderly parents who could not take care of themselves have to mainly depend on their adult children．With the only child growing up，the daughter’s role is increasing in the intergenerational functional relationship，and even has no alternative．On the other hand，as the prolongation of life expectancy and increase of generations of lineal members，this will likely increase the burden of the adult children caring for elderly．Overall，at present，adult children's feedback function has declined and will directly affect the reproductive behavior of couples at childbearing age．The reasons for the weakening intergenerational functional relationship are as follows: social welfare system has played a role as an alternative to son in supporting the elderly，some objective factors have limited the play of family function，subjective consciousness of keeping intergenerational relationships has been weakened，the new institution environment that maintains intergenerational relationships has not been established．

Keywords:  Intergenerational Relationship, Intergenerational Functional Relationship, Social Transformation, Family