STUDY ON CHARACTERS、CAUSE OF FORMATION AND COUNTERMEASURES OF POPULATION AGING IN CHINA

Population aging means the increase trend of elder population over 65 years in an area or a country,which reflects the change of population age structure,results from social and economic development and affects the social and economic development as wellas population in future at the same time. China is not only the country with mass population but also a country with large elder population in the world, in which population aging process has especial tincture and reason. With the help of maths method,the paper gathers up character of population aging in China:①Population changes quickly and population aging process is speedy.②The absolute quantity of elder population is large, in which the amount is more at low age and increases fleetly to high age group.③It is not adaptive between population aging and comprehensive national strength.④The regional difference among all areas is distinctive. The essential reason is family planning policy and longer life. Lastly, some countermeasures are offered. For example, we should understand the problem of population aging with scientific attitude, advance laboring productivity, swell supporting power, set up safeguard system that was provided for aged and healthy elder society.