Depending on the patient’s physical condition, anatomical pneumonectomy is feasible, or if physical condition does not allow, sublobar resection, anatomical segmental lung resection (preferred), or wedge resection is performed. Usually the pulmonary veins, pulmonary arteries, and finally bronchi should be treated intraoperatively in order, or the order of treatment should be decided according to the actual intraoperative situation. According to the latest NCCN and ESCO guidelines, we further specify the indications for anatomic pneumonectomy and wedge resection. Systematic lymph node dissection must be done, and if the lesion is located in the outer third of the lung lobe and is less than 50 px in diameter, the final criterion for pneumonectomy and wedge resection is that the pathology of the frozen cut margin is negative. Sublobar resection includes lung segmental resection and wedge resection. Lobectomy remains the best option for patients with stage IA NSCLC. The order of the individual vessels and trachea of the lower organs has been slightly relaxed in the new version of the specification, based on the anatomical features of minimally invasive surgery and VITS surgery.