The traditional treatments for malignant tumors include surgery, radiotherapy and intravenous chemotherapy, etc. With the continuous improvement of medical technology and the rapid development of modern medical equipment, an advanced treatment method – minimally invasive interventional technology plays an increasingly important role in the treatment of malignant tumors and has been widely recognized by international and domestic academics, and has become an indispensable means of treatment for malignant tumors. It has become an indispensable treatment means for malignant tumors. The main mechanism of this technology is to send special micro catheter to the nutrient blood vessels of tumor tissue through accurate positioning under the monitoring of imaging equipment, instill drugs or embolic agents to maximize the anti-tumor effect of drugs and block the microvessels in the tumor, so that the tumor will lose the nutrient supply, and ultimately let the tumor necrosis. Compared with traditional treatment methods, minimally invasive interventional technology has the following unique advantages: 1. Minimally invasive: the treatment process only requires a very small skin incision, and the amount of bleeding is also very small, so the patients have no pain and are easy to tolerate. 2. Short recovery time: patients can move freely within one day after the operation, which has little impact on daily life. 3.Accurate positioning: All operations are carried out under the guidance and monitoring of imaging equipment, which makes the positioning and treatment of diseased tissues highly accurate. 4.High efficacy and quick effect. 5, low complication rate: compared with surgery and systemic chemotherapy, minimally invasive interventional techniques have significantly reduced postoperative complications. 6, repeatability: due to the complexity of the lesion one-time treatment is incomplete or recurrence of the lesion can be repeated according to the patient’s specific circumstances. At present, minimally invasive interventional technology is most commonly used in the treatment of liver cancer, lung cancer, gastrointestinal tumor, kidney cancer and pelvic tumor.