Abstract: From years to years, the smoking behavior of teenagers in Indonesia seems to keep increasing. There are also various types of cigarette being consumed, the most popular of which are, beside conventional cigarettes, electronic cigarettes. This research aims at expounding the perception of conventional and electronic cigarettes on teenage students in on Sumedang Regency, West Java, Indonesia. The research method is quantitative-descriptive, involving 365 students using stratified cluster sampling. The research result shows that most teenagers have a high positive perception on the impact of conventional cigarettes (65.2%) and electronic cigarettes (59.8%). The tendency of respondents who have a high perception on the impact of conventional and electronic cigarettes are in grade X (tenth), are female, have a daily allowance, and are not smokers, both of conventional and electronic cigarettes.