The range of radiofrequency ablation for lung cancer treatment should preferably be 0.5-1cm beyond the edge of the tumor to kill the most active edge of the tumor, so as to prevent the tumor from recurring. Radiofrequency ablation utilizes the heat generated by radio waves to destroy cancer cells and kill them, so as to achieve the effect of cancer treatment. Radiofrequency ablation therapy is less damaging to normal tissues in the human body, has fewer adverse reactions, and is effective and easier to operate, so it is a commonly used method for some cancer treatments. Radiofrequency ablation therapy is a new treatment mode for lung cancer patients who have poor cardiopulmonary function or cannot tolerate surgery, which can improve the survival rate of lung cancer patients. It is suggested that lung cancer patients should go to regular hospitals in time and listen to professional doctor’s advice.