Abstract: Population aging is the result of social progress and economic development,and it is also the common problem of the whole world.Since Chin’s reform and opening up,the rapid development of economic society and the implementation of family planning policy has led to the increase of population aging.Population aging in Changji Prefecture also presents the trend of aging,empty nest family miniaturization,and this put forward new requirements to the corresponding infrastructure,legal system,economic and social development,social pension and social security system in Changji Prefecture.This paper mainly focuses on the aging of the population brought about a series of social question,has carried on the analysis of the current status of aging and facing challenges,and put forward corresponding countermeasures and measures from the aspect of the government,society,family,and the elderly themselves.

Key words: Population Aging, Pension Mode, Social Security System for the Elderly