Early stage of right lung adenocarcinoma has a high probability of cure, and the five-year survival rate is over 90%, which is also the best period for treatment. Early stage of right lung adenocarcinoma is the best time for treatment. With timely surgical resection and combined chemotherapy for some patients, most of the patients can be cured, and it is also the period with the best treatment effect. Some patients with higher degree of malignancy or those who cannot be surgically resected may have recurrence and metastasis, so they must pay attention to regular review after treatment. Early lung adenocarcinoma often has inconspicuous symptoms, which makes clinical diagnosis difficult. However, early lung cancer can be detected through CT screening, so those with risk factors should undergo medical checkups as early as possible.