The conditions suitable for the application of thoracoscopy for minimally invasive lobectomy are as follows: 1. peripheral non-small cell lung cancer 2. some central non-small cell lung cancer 3. benign lung diseases Some patients with pulmonary alveoli: emphysema, bronchiectasis, pulmonary aspergillosis, pulmonary isolation, tuberculosis bulb or cavity, pulmonary cyst, pneumonia pseudotumor. Advantages of thoracoscopic surgery 1. Small damage: The surgical incisions are two incisions of about 1.5cm incision oral cavity mirror and one incision of about 3~5cm long at the position of the 4th intercostal axillary line (lateral side of the chest). The postoperative scar is small, and the incidence of postoperative wound infection and poor healing is greatly reduced. 2.Significant reduction of postoperative pain: The small incision makes the postoperative pain of patients much less, reduces the application dose and application time of postoperative analgesic drugs for patients, and we routinely perform intercostal nerve closure at both ends of the incision at the end of surgery, which further reduces the degree of postoperative pain. 3.Shorten the retention time of chest tube and hospitalization time: usually the chest tube can be removed 2~3 days after surgery; most patients can be discharged 7 days after surgery. 4.Comparison of lung function condition and mobility: thoracoscopic surgery is better than conventional open-chest surgery patients in terms of lung function condition and mobility after surgery due to less trauma and less postoperative pain. Lymph node dissection in thoracoscopic surgery The cost of thoracoscopic surgery is about 10,000 yuan higher than that of conventional open thoracotomy because disposable instruments must be used under the lumpectomy to cut off pulmonary vessels and bronchi. For traditional open thoracotomy lobectomy, if the surgery and postoperative period are successful, the cost of the entire hospital stay (including the cost of surgery and medications, etc.) is usually about 30,000 to 40,000 yuan.