Early detection and active treatment of lung cancer can help improve the treatment effect, slow down the progress of the disease and help patients obtain long-term survival. With the continuous updating of medical technology, thoracoscopic radical lung cancer surgery has been gradually favored by most patients due to the advantages of fast recovery and small trauma after surgery, although the surgical effect is good, postoperative care should be paid attention to. What should we pay attention to after thoracoscopic surgery for lung cancer? After lung cancer thoracoscopic surgery, self-care should be done under the guidance of doctors, supplementing some light and nutritious food to ensure a better nutritional status, which is beneficial to the recovery of patients. If it is impossible to eat, consider intravenous nutritional support. Encourage patients to cough and sputum removal, some rehabilitation exercises to improve respiratory function can be performed, and get out of bed early after surgery to prevent the emergence of lower limb venous thrombosis, pulmonary comorbidity and muscle adhesions. Treatment for patients with lung cancer should be based on clear pathological types and clinical stages. Compared with non-small cell lung cancer, small cell lung cancer is more sensitive to chemoradiotherapy. Early stage patients should strive for surgical treatment as much as possible, and patients who meet the indications should consider minimally invasive thoracoscopic surgery and timely postoperative review to decide whether to do prophylactic chemoradiotherapy. Patients with middle and late stage lung cancer may not be able to undergo surgery due to the emergence of metastatic lesions. The comprehensive application of chemotherapy, radiotherapy and targeted drug means under the guidance of doctors can help inhibit the growth of lung cancer and improve the survival time of patients. Patients diagnosed by chest X-ray, chest CT, sputum cytology, bronchopathology and other examinations, if they belong to early stage, mostly need to actively strive for surgery. Thoracoscopic surgery for lung cancer is minimally invasive. For lung cancer patients, the trauma caused by traditional open-heart surgery may not be tolerated, and the surgery is performed under thoracoscopy, which avoids opening the chest and breaking bones, has a small trauma scope and quick recovery after surgery, and will not leave long scars. Thus, the care after thoracoscopic lung cancer surgery should be a reasonable diet, appropriate rehabilitation exercises, and encouragement of coughing and sputum removal to promote the recovery of lung function.