Early stage lung adenocarcinoma can be cured. 1. Early stage lung adenocarcinoma refers to TNM stage 0 and stage I, without lymph node metastasis and distant organ metastasis, and the majority of early stage lung adenocarcinoma patients can be cured by surgery; a small number of early stage lung adenocarcinoma patients who cannot be operated because of their age or other diseases can be treated with stereotactic radiotherapy, which can achieve the therapeutic effect of close to surgery. 2. The survival rate of early stage lung adenocarcinoma can reach more than 90% in 10 years after surgery, and the life expectancy of patients with carcinoma in situ and stage 1a1 lung adenocarcinoma after surgery is basically the same as that of normal people. 3. The vast majority of early lung adenocarcinoma patients do not need postoperative radiotherapy and targeted therapy, but stage Ib patients need postoperative chemotherapy with anti-cancer drugs. Early detection, early diagnosis and early treatment are the key to lung cancer prevention and treatment. Early stage lung adenocarcinoma patients are recommended to go to the hospital as early as possible for surgical treatment.