The core tendency of the only-child family structure,living separate and aging population with fewer children,are all the reasons for their increasing pension risk. Based on the support contents for the aged,the only-child families are facing not only economic pension risk but also noneconomic pension risk including life assistance,medical care and emotional support,especially the noneconomic pension risk. From the perspective of risks,this paper analyzeed the relationship between the only-child family characteristic and pension risk.The article pointed out three ...