B ackground: Nowadays, people have experienced many developmentsin their lives. they have become more modern and their life style have change. Smoking has become a trend that cannot escape from life styles, has become an addiction fot most people in the world, especially men. Tobacco Atlas 2009 shows that indonesian was ranked fifth on 2007 after China, US, Russia and Japan. Negative effect of smoking have been widely recognize by the society. Smoking has caused not only systemic diseases, but also an oral disease that that we know as smoke's melanosis.Method of research: The research was conducted through cross-sectional analytic survey using microsoft excel. the datas were collected by quetionnaires and simple clinical examination technique. the criterion that was used for the samples was based on the Riskesdas' survey on 2007. Result: the result showed that 18 out of 76 subjects experianced smoker's melanosis, while 58 subjects did not have smoker's melanosis. Conclusion: From the research that has been done, it can be concluded that there is a relationship between the numbers of cigarettes consumed each day with the prevalence of smoker's melanosis.