For the treatment of lung cancer, it should currently be based on a comprehensive treatment method tailored to the patient's age, specific condition, nutritional status, economic condition, and the capabilities available at the hospital. It is particularly related to the stage of the disease and the type identified in the tissue biopsy. Currently, lung cancer primarily adopts a multidisciplinary comprehensive treatment approach spearheaded by surgical intervention. Surgical treatment is the preferred method for lung cancer, but since it is a systemic disease, surgery alone cannot completely address the issue. Therefore, it must be combined with radiotherapy, chemotherapy, and other treatments in a multidisciplinary and comprehensive approach. Additionally, immunotherapy and targeted therapy are inseparable and crucial parts of integrated treatment strategies for lung cancer. If the disease is staged and involves adenocarcinoma or squamous cell carcinoma of the lung, surgical treatment is recommended followed by adjuvant radiotherapy or chemotherapy, or targeted and immunotherapy. If surgery is not possible, some supportive treatments can be considered. For small-cell lung cancer, surgery is not recommended because it offers no benefit; instead, a combined approach of chemotherapy and radiotherapy is advised.