Microinvasive lung adenocarcinoma is an early stage lung cancer and usually has a better prognosis after treatment. Lung adenocarcinoma is one of the pathological types of lung cancer, which can be caused by heredity, environment, smoking and other factors. Microinvasive represents the degree of tumor development between carcinoma in situ and invasive carcinoma. In this period, the lesion is limited without lymph node and distant metastasis, and can often be treated by radical surgical resection. After treatment, the five-year survival rate of minimally invasive lung adenocarcinoma can reach more than 95%, and the overall prognosis is good. However, patients still need to pay attention to regular review after surgery. If microinvasive lung adenocarcinoma occurs, it is necessary to actively consult the doctor and follow the doctor’s instructions for reasonable treatment.