Health is heavily influenced by behavioral, social and environmental determinants as well as the biomedical characteristics of individuals. The World Health Organization announced the Health Promotion Charter in Ottawa, Canada in 1986 as a strategy to enable people to have control over and improve these health determinants. This is therefore essential to prevent disease and illness due to risky behavior as well as unsound social and natural environments. Whereas all developing countries have numerous health issues regarding behavior and environment, they need the Health Promotion strategy. Japan has so far implemented a lot of programs of health education and environment improvement to control over such determinants. Thus, Japan should promote and disseminate the Health Promotion project more in international health cooperation through official development assistance for developing countries.