Lung cancer is the most common primary malignant tumor of the lung, and most lung cancer patients have already lost the opportunity of surgical operation by the time of definite diagnosis. In recent years, with the development of interventional radiology, many effective interventional therapies have been carried out in clinical practice and have been increasingly valued and welcomed by clinical treatment, and nowadays, they have become effective treatments for lung cancer, especially intermediate and advanced lung cancer. Transarterial catheter lung cancer interventional therapy is a new method different from both systemic chemotherapy in internal medicine and open surgery. Its mechanism of action is to infuse chemotherapy (several chemotherapeutic drugs are combined and infused into local tumor tissues, so that a large amount of drugs are concentrated in tumor local killing and killing tumor cells) through arterial catheter, and then inject granular embolic agent through catheter to embolize tumor blood vessels, which can not only make the embolized tumor tissues die of starvation due to ischemia, but also local chemotherapy can play a role in killing the metastatic lymph nodes around the tumor. . Advantages of treatment: 1, minimally invasive 2, safe 3, good efficacy 4, less painful 5, fast recovery 6, less complications 7, low cost 8, repetitive treatment (new lesions can be re-intervened to achieve better clinical effect).