Aging population, namely elderly population weight increased process. Internationally usually put over the age of 60 population 10%, or population aged 65 or above the proportion of 7% as countries or regions into aging society's standards. Currently developed countries of the aging degree greatly exceed the developing country while developed countries aging degree of most serious is Japan, 27%, followed by Italy and Germany. Cause the aging of the population immediate cause is the birth rate and mortality of decreased, but in social arises-whether, cause the aging population mainly has the following four reasons: one is that people's aging, The modern society of industrialization caused social structure and family structure changes, 3 it is the development of modern medical science is the continuation of the elderly life provides scientific guarantee, The fourth is urbanization and modernization of society developed. The biggest impact caused by aging population for the old society is the attention of tall. For the first time since the 1970s aging with the fastest Japanese speaking, the degree of its cause the main influence has four aspects. One is the Labour population decline, the enterprise rising costs, and labor structure changes. The increase of elderly labor to make technology applied updates, and expanded enterprise labor cost. 2 it is saving descending, money supply more nervous. But also cause a third affecting medical cost. This makes the social burden. Because the elderly often body immunity function is the worst. The fourth is rapidly aging population, make endowment system is piled family much heavier. The Japanese government facing the problem, issued a series of major policy: 1, improve pensionable age; 2, cut pay level, 3 and improve the government's burden of proportion. Pension age will increase from 65 to 70 years of age, and pension of reducing the number of can change of various ages asymmetry. But these policy at the same time, external criticisms of Japan will daily increase. For a man, raising the old man is a duty, but at the same time, such liability but make social age structure change, the stability of the society, it has caused some effect exactly how to balance the relationship between the two? This is a long-term problem 可以不…………