Peripheral pulmonary nodules are a general term used in diagnostic imaging for solitary, round-like hyperdense images in the lung with a maximum diameter of less than 3 cm. The rapid development of televised thoracoscopic surgery in the 21st century has provided a new diagnostic and therapeutic method for pulmonary peripheral nodular lesions. Although small nodular lesions are more common in the lung, their diagnosis is one of the more difficult problems in thoracic surgery. noninvasive examinations such as X-ray, CT, and MRI have some significance for diagnosis, but cannot make a definite diagnosis of the nature of the nodule, and the positivity rates of invasive examinations such as fibrinoscopic biopsy, trans-fibrinoscopic alveolar lavage, trans-fibrinoscopic bronchial aspiration biopsy, and pulmonary puncture biopsy are also unsatisfactory. Before the advent of televised thoracoscopy, open-chest exploration was often the confirmatory method for obtaining a pathologic diagnosis for this type of lesion. However, open-chest surgery is very invasive, slow to recover, and often not easily accepted by patients. The emergence of TV thoracoscopy is a good way to solve this contradiction. While benign lesions can be diagnosed and treated, its advantages of less trauma, less postoperative pain, fewer complications, faster recovery, shorter hospital stay and less cosmetic impact make the surgery more acceptable to patients and doctors; once the intraoperative frozen pathological examination confirms the diagnosis of lung cancer, the radical lung cancer surgery can be performed immediately with the assistance of thoracoscopy, without the need for open-heart surgery. Once the diagnosis of lung cancer is confirmed by intraoperative frozen pathology examination, thoracoscopic-assisted radical lung cancer surgery can be performed immediately without open-heart surgery, so that the disease can be treated timely. One of the difficulties in using TV thoracoscopy is to find the nodule, especially when the nodule is small, covered by normal lung tissue on the surface and deeper, it is very difficult to locate the nodule, which is a difficult problem for thoracoscopic thoracic surgeons. For this reason, we have specially introduced an effective localization system and operation technique from abroad, and the intraoperative lesion localization rate has reached more than 96%. The current domestic and foreign data combined with our practice show that the safety and efficacy of radical surgery for early stage lung cancer with small incisions assisted by TV thoracoscopy are satisfactory, and the most important feature is that the patient recovers quickly and can be discharged from the hospital generally five days after surgery.