People often said that setting sun infinite good, is only the near dusk. The life, from our born to the conclusion, this is a course, and it has its beautiful and sorrowful! No matter the wisdom or simple minded, old, could get sick the phenomenon which, die to need since birth to withstand. But when we get older, it is precisely the natural physiological change process. As a result of technical development, the life quality promotion, human's life extension, mental handicap is not exceptional. It is to be urgent to look after the service regarding the research on the advanced age mental handicap old man's placement. This research analysis on mental handicap aging initiates family attendance manpower, the life question, and further discuss the demand on advanced age mental handicap looks after the service and seeks the possible placement choice way as well as the policy in accordance to it road. Also because of the past experts' research results understanding mental handicap aging special characteristic and the family attendance work question, realized the future mental handicap will look after the system existence the question, will possibly face the difficult position for the future, which means to seek direction which is the welfare service and the policy will be possibly developed. It lets us enhance to the mental handicap aged phenomenon vigilance, the ahead of time plan medical service and the advanced age mental handicap looks after the measure which the service system corresponds, and weighs the possibility of the utilization on common old person's welfare service, finally, the mental handicap welfare service should accurate to carry out, also in this domain, the government should act the initiative role, provides each mental handicap family enough welfare resources. We hope that it is the result of the above discussion, and it can provide the government or the folk to look after frontage of suggestion the plan in the establishment mental handicap old man. Moreover, we hope that we may offer a few ordinary introductory remarks so that others may offer their valuable ideas to arouse the social populace's compassion, and to look after the mental handicap old man's concern contributes our own mental effort.