Whether lung malignant tumor can be cured mainly depends on the stage, early stage is generally curable, and the earlier the treatment, the lower the probability of recurrence and metastasis, the higher the probability of complete recovery; advanced tumor can not be cured, and can only prolong the life by controlling the development of the disease. 1. Early-stage lung malignant tumor: it is only confined to the lungs and can be completely eliminated by radical resection through surgery, partially assisted by postoperative radiotherapy and targeted therapy, after which it can be clinically cured and generally will not recur or metastasize. 2. Advanced lung malignant tumors: once lung tumors enter into advanced stage, there is obvious invasion to the surrounding tissues, and some of them will be accompanied by regional lymph node metastasis and distant metastasis, which cannot be completely cured, and can only be controlled by adjuvant radiotherapy and targeted therapy to prolong the survival time. On the whole, the earlier the lung malignant tumor is treated, the better the treatment effect is, and the clinic should mainly do early detection, early diagnosis and early treatment to improve the cure rate.