The problem of population aging is the most immediate problem facing the world at present, and the future impact of population aging on the social impact and impact, silver business opportunities must be an important part of the future development, in recent years, due to economic factors rather than marriage , or the fact that marriage is not happening, the domestic fertility rate is declining. therefore, if the population structure is compared with that of the major countries, the population aging rate in taiwan is particularly rapid. taiwan and mainland china are aging rapidly and the birth rate declines year by year. if the elderly are healthy, independent and even prolong their social function, the productivity and competitiveness of the whole country will face a major crisis ten years later.