Lung cancer can be divided into two types: small cell lung cancer and non-small cell lung cancer, and the treatment of mediastinal lymph node metastasis of lung cancer can be done through surgery, chemotherapy and radiotherapy, etc. If the lymph node metastasis is more limited, it can be resected by surgery and supplemented by radiotherapy. If the lymph node metastasis is relatively limited, it can be treated by surgery with adjuvant treatment such as radiotherapy, and if it has already metastasized to the esophagus or thoracic aorta lymph nodes, it can be treated by chemotherapy or radiotherapy, which can prolong the survival time to a certain extent. As each patient’s physical condition is different, the corresponding treatment plan is also different, it is recommended that the patient go to the hospital in time, after clarifying the cause of the disease, under the guidance of professional doctors for standardized treatment.