The research titled “causes and effects of drugs abuse on students’ academic performance”. Drug abuse among youth is a major national concern, it is troubling, and it has derogatory effects on youth such as health and behavioral problems, or even death. A sample of 290 undergraduate students and staff were randomly selected from nine faculties of Nims University Jaipur. One of the research questions is what the causes of drug abuse among students are. 5-point liker scale of drug questionnaire was administered and distributed personally. The data collected and analyzed using percentage. It was discovered that the drug abuse has serious negative effects on students’ academic performance. Recommendations are: Drug-free Clubs should be encourage among students, regular awareness programs should be maintain and group and individual counselling should be introduce.