The only treatment for early peripheral lung cancer is radical surgery. Clinicians recommend patients to undergo lobectomy or segmental lung resection with thoracoscopic assistance and sampling or clearing of lymph nodes, i.e., radical removal of lung cancer tissue. Early lung cancer or early peripheral lung cancer does not require postoperative radiotherapy or chemotherapy after radical surgery, because the prognosis is the same regardless of whether the patient has adjuvant radiotherapy or chemotherapy after surgery. Therefore, it is recommended that patients with peripheral lung cancer do not need other treatments after radical surgery.