Objective To summarize and analyze the surgical approach and early prognosis of repairing adult aortic closure insufficiency with the Florida sleeve procedure. Methods The patients with aortic insufficiency who underwent Florida sleeve repair in the First Hospital of Nanjing Medical University between August 2020 and May 2024 were selected. Their general data, perioperative conditions, and echocardiographic data before, during, and after the procedure and at follow-up were analyzed. Result Fifteen patients were included, consisting of 12 males and 3 females, aged 33-71 (53.5±12.4) years. Preoperative echocardiography indicated that there was 1 patient of rheumatic disease, 7 patients of degenerative disease, 4 patients secondary to aortic aneurysm, and 3 patients of bicuspid aortic valve. The severity distribution included 2 patients of severe insufficiency, 4 patients of moderate-to-severe insufficiency, 5 patients of moderate insufficiency, and 4 patients of mild-to-moderate insufficiency. The mean cardiopulmonary bypass time was (135.0±40.0) minutes, the aortic cross-clamp time was (109.9±38.6) minutes, and the median ICU stay was 1 day. No mortality was recorded within 30 days postoperatively. Follow-up echocardiography showed that the valve regurgitation, left ventricular end-diastolic diameter, left ventricular end-systolic diameter, and sinus diameter all achieved the desired outcomes. Conclusion Florida sleeve repair for aortic valve in patients with a sinus diameter less than 50 mm not only effectively improves hemodynamics in adults with aortic insufficiency, but also has the advantages of low surgical risk and rapid postoperative recovery, making it a promising procedure for clinical application.