Tumors that shrink after radio wave knife treatment may still grow. Radio-wave knife treatment can only partially eliminate tumors and there may still be residual tumors, so there is a possibility of recurrence after localized radio-wave knife treatment, so regular review is needed so that abnormalities can be detected in time for early treatment. For peripheral lung cancer with small tumors, the 5-year local control rate can be as high as 88%~94% if radical dose is given. For example, radio wave knife treatment for lung cancer does not require anesthesia, does not require surgical incisions, and has no risk of bleeding or infection. When the patient’s physical condition is not suitable for surgery, the advantages of radio-wave knife treatment for lung cancer are significantly higher than surgery, especially in the early stage, when the tumor can be removed surgically. Radio-wave knife treatment can shrink the mass and relieve local symptoms caused by lung cancer mass, but it can also cause local damage, such as radiation pneumonia and other diseases. Radio-wave knife treatment is one of the methods of tumor treatment, which cannot completely remove the tumor cells, which can still metastasize through blood or lymph channels. However, for some tumors that are very sensitive to the radio wave knife, the treatment effect is very good, and it is possible to achieve the goal of eradication. After being treated by the Radio-wave Knife, patients should have regular follow up and review, and if there is any abnormality, timely treatment under the guidance of the doctor.