Metastatic lung nodules mean metastatic lung cancer, clinically most of them have no specific clinical symptoms, such as the appearance of symptoms mostly manifested as cough, coughing sputum, hemoptysis, chest tightness, shortness of breath and chest pain. If the lung nodule grows too fast, it will manifest as severe dyspnea, low fever and body wasting, etc. For metastatic lung nodules, they need to be detected under the observation of X-ray, CT and other imaging, and mostly have single and multiple combinations. Clinically, the disease should be treated actively for the primary lesion, like other malignant tumors that appear in patients. For metastatic pulmonary nodules, chemotherapy, radiotherapy, interventional therapy and other treatments can be chosen, which are all effective in improving the condition.