Population aging is accompanied by the rise in the proportion of chronic diseases, huge medical expenses caused by the heavy burden the next generation with the hope that through proper eating habits to improve year by year increase in the proportion of chronic diseases. In this study, STP and 4 P as a study of dimensions, in-depth analysis on a case by case study, analysis, compared the Japanese company AB C rain Taiwan company's business strategy and direction, as a future business strategies C rain direction of reference. This study shows that Japan A, B company's marketing strategy in line with Japan's aging population and chronic diseases have been increasing in each of the demand. Taiwan is also the problem of aging and chronic diseases annually serious problem areas, but health food in Taiwan is not mature, C company's marketing strategy did not keep pace with medical diet trend. Japan AB company's marketing strategy worthy of study and reference C Company.