BACKGROUND: According to the United Nations, drug reports 2016, 250 million people aged 15 to 64 an estimated 29 million of them have used drugs and narcotics. The United nations states that the drug and narcotic manufacturing have increased by three times in east 15 years. Mongolia is located between Russia and China that are the most drug used countries in the world and it can increase the risk of drug usage in Mongolia. OBJECTIVE: Study to knowledge and attitude about drugs and narcotics among the high school, college and universities students in Ulaanbaatar. METHODS: The research was conducted among the school, college and universities students and the analytic research method was used in our research. 176 middle and high school students, 215 university students and 70 college students from morning classes were participated in the survey. The survey research was used method of collecting information and materials about the drug usage and narcotics. SPSS 17 was used for statistical analysis. RESULTS: The highest point was 16 (n=1) and lowest point was 0 (n=16) and the knowledge of drugs among the students was 8.14. Results releated that 7.8% (n=36) of students have enough information about the drugs and narcotics, 62.9% (n=261) of students did not have enough information and 29.3% (n=135) of them have informed moderately. CONCLUSIONS: Exploring the knowledge about drugs and narcotics among the students, 7.8% of them have enough information, 62.9% of them did not have enough information and 29.3% of them have informed moderately