Purpose: Knowledge about cigarette smoking among medical students of Mohtarma Benazir Bhutto Shaheed Medical College, Mirpur, AJ&K, Pakistan. Methodology: Study design and place: This is cross sectional study conducted at Mohtarma Benazir Bhutto Shaheed Medical College, Mirpur, AK. Sampling: A pre-tested structured questionnaires were distributed among 100 students of 1st & 2nd year. The sampling was random. Out of 100 students 89 students was correct respondent. Results: Our current study begin with ingredients of smoking according to survey only 56.17% students know about ingredient of smoking while on the other hand 83.145% agree that it is health hazard problem. Query regarding laws of smoking revealed that only 37.7% know about laws of smoking. Conclusion: On the basis of our results it is concluded that most of genders are somkers and among these the proportion of male is higher than female and main reason for smoking is just for fun. on such circumstances it is mendatory to prevail hazar Limitations: Out of 400 students of mohtarma Benazir Bhutto Shaheed medical college only 100 were selected just because of time and budget. Recommendation: Based on the prevalence of smoking it is mandatory that awareness about hazards of smoking should be prevailed by conducting seminars and by adding its educating them in our educational curricula.