Lung adenocarcinoma pleural metastasis usually belongs to distant metastasis. Patients with pleural metastasis of lung adenocarcinoma will have symptoms such as chest tightness, shortness of breath, dyspnea, fluid accumulation in chest, etc., accompanied by loss of appetite, weight loss, coughing up sputum and hemoptysis, fatigue, chest pain, etc., and should consult doctor for treatment in time. Patients with pleural metastasis of lung adenocarcinoma can take chemotherapy treatment according to doctor’s instruction, using chemotherapy drugs such as cisplatin and bleomycin. The prognosis of patients with pleural metastasis of lung adenocarcinoma is poor after treatment, and the five-year survival rate of patients is 5%. Patients with pleural metastasis of lung adenocarcinoma should consult doctor in time and take treatment measures under doctor’s guidance.