Basic life support (BLS) is a resuscitative emergency care provided to victims of medical conditions which could be life threatening, until they can be given full medical care at a hospital. BLS ensures maintenance of clear airway, support of breathing and blood circulation in case of cardiac arrest .BLS is an important aspect of daily emergency medical treatment which ,if provided correctly can save a life. Objective: the objective of the study was to evaluate the knowledge and attitude of dental professionals towards basic life support in Lahore, Punjab, Pakistan. Method: The study was cross sectional in nature. A questionnaire was used to collect data from 174 dental students of government and private sector in Lahore, which included questions on various aspects of basic life support including basic knowledge about treatment procedures and general attitude of dental students towards training. Dully filled questionnaires were collected, analyzed and presented as pie chart and graphs. Results: In this study, 51% of participants showed lack of basic knowledge about basic life support and none of the participants were able to answer all of the asked questions .76% of students admitted that they were never educated about basic life support but 96% of participants agreed that they should be trained for providing basic life support. Conclusion: It was concluded that the dental students and practitioners of Lahore have a healthy attitude towards training of basic life support but a considerable number were lacking in general knowledge of cardiopulmonary resuscitation (CPR) and other critical procedures of basic life support. Despite encountering medical emergencies in dental clinical set ups, they were never trained in basic life support. Theoretical and practical training of BLS should be made a compulsory part of dental courses in the region to rectify the situation.