Surgery time for pulmonary nodules depends on the type of nodule pathology, size and location, as the surgeon decides the specific surgery based on the above characteristics of the nodule: 1. If it is a benign nodule, only local excision is required. If the location of benign nodules is shallow, lung wedge resection is used and the operation time is less than one hour; 2. If the location is deeper, deep lung, lung segment resection or combined lung segment resection is needed and the operation time is slightly longer, about 2-3 hours; 3. If the nodule is malignant, depending on the specific situation the surgeon chooses lobectomy or sub lobectomy surgery, sub lobectomy includes both lung wedge resection and lung segment resection The sublobar resection includes two types of lung wedge resection and segmental lung resection. Mediastinal lymph node dissection or mediastinal lymph node sampling must be performed during the operation, and because the operation is more extensive, the time required is longer than the above operation, about 2-3 hours.