The application experience of minimally invasive axillary thoracotomy in thoracic surgery involves peeling the intercostal muscles at the edge of a rib, which reduces blunt injuries to the intercostal nerve and prevents feverish burns. This is done to achieve the purpose of reducing postoperative pain. For elderly patients with T-tube placement, arthritis, coronary heart disease, and other potential risk factors, the score can be as high as 0.4. The posterolateral thoracotomy using J-shaped nails involves more trauma and Russian refolding, which can easily induce fear-related atelectasis and acute cardiopulmonary dysfunction or failure. By using a small incision approach, tissue damage and blood loss are reduced, thus shortening the postoperative cardiopulmonary recovery time.