Have you ever noticed that: tobacco and environmental tobacco smoke, air pollution, individual occupational exposure to carcinogenic factors (asbestos, chromium, nickel, inorganic arsenic, coke, methyl ether), household cooking, soot pollution (containing large amounts of polycyclic aromatic hydrocarbon carcinogens such as benzo(a)pyrene), and chronic respiratory diseases can increase the risk of lung cancer? Lung cancer has become the most common cause of death among malignant tumors, and WHO predicts that by 2025, China will have more than 1 million new lung cancer cases each year, making it the world’s number one lung cancer country. However, in the face of the side effects brought by traditional lung cancer treatment, the survival rate and quality of life of lung cancer patients are poor. Spiral tomotherapy system (also known as TOMO knife) is a cutting-edge tumor radiotherapy equipment, which is the only image guided radiotherapy system that adopts radiotherapy irradiation and CT homologation. TOMO knife not only improves the efficacy of lung cancer radiotherapy, but also reduces the acute and long-term radiation damage to normal lung tissue, adjacent heart, esophagus and spinal cord, minimizing the “double damage” caused by traditional radiotherapy. “TOMO Knife can complete the radiation treatment of multiple lung tumors at one time, reducing the treatment time and multiple injuries; together with 4DCT respiratory phase fusion control technology, it can reduce the off-targeting of lung cancer lesions caused by lung breathing motion and ensure the accuracy of radiotherapy. Although the single treatment cost of TOMO knife is higher, the total course of TOMO knife treatment is shortened, for example, 5-10 treatments for early-stage lung cancer, costing 30,000-60,000, reducing the time of hospitalization and hotel loan, which is especially suitable for foreign patients, and improving the survival rate of lung cancer patients while reducing the incidence of complications, which is expected to reduce the economic costs and improve the quality of life for patients due to recurrence and complication treatment. It is expected to reduce the financial costs of treatment for recurrence and complications, improve the quality of life, and have significant advantages over conventional radiation therapy in terms of overall cost-effectiveness. In conclusion, the advantages of TOMO knife radiotherapy for lung cancer include: precise irradiation, obvious efficacy, short treatment course, low side effects, high cost effectiveness, and improved local control rate and survival rate of lung cancer patients. Note: The 2-year survival rate of 46 cases of non-small cell lung cancer was 46.8%, which was 25% higher than other means of radiotherapy, and no grade 3 or higher esophagitis occurred.