Title : Role of CO2 LASER IN ENT . Objective : To study role of Carbon Dioxide laser and its application in surgeries of ear, oral cavity, pharynx, larynx & trachea. Method : This is a descriptive study of 90 patients carried out at Department of ENT and Head-Neck Surgery, B. J. Medical College and Civil Hospital, Ahmedabad who were treated by using CO2 laser. Results & conclusions : We had used CO2 laser in 88 patients in our institute under ENT department. Out if these 88 cases only 5 patients showed intra-operative bleeding, 3 patients had post-op oedema was seen. Hence it suggests that laser surgery is bloodless with minimal oedema which resolves within few days .