Abstract: The surgery is the first choice for early lung cancer treatment. The standard approach is lobectomy plus lymph node dissection. In recent years, thoracoscopic minimally invasive surgical technique is widely carried out clinically; the safety of thoracoscopic lobectomy has been recognized. With the advances in medical imaging techno-logy, more cases of early lung cancer has been detected, for early peripheral lung cancer with the carcinoma less than 2cm in diameter, whether pulmonary segmentectomy or wedge resection could replace lobectomy as the standard operation of this type of lung cancer yet to the emergence of new evidence.