How to treat mediastinal lymphatic metastasis of lung cancer depends on the specific situation, and it can be treated by surgery for resection, radiotherapy and chemotherapy. Mediastinal lymphatic metastasis of lung cancer usually needs to be resected by surgery and combined with chemotherapy and radiotherapy to relieve symptoms. However, if the cancer cells have invaded the local esophagus, thoracic aorta and other important organs, and there is no way to carry out surgical treatment, only radiotherapy and chemotherapy can be used to control the continuous spread of cancer cells and prolong the survival period as much as possible. Mediastinal lymphatic metastasis of lung cancer means that the cancer cells of lung cancer reach the mediastinal lymph nodes through lymphatic circulation, which usually belongs to the middle to late stage of the disease, and if not treated in time, it will compress the surrounding tissues, such as airway, superior vena cava, etc., and cause serious complications. Therefore, it is necessary to cooperate with the doctor for treatment early and actively. Patients should keep a good attitude, do not have too much psychological pressure, and actively cooperate with doctors to fight against cancer.