Minimally invasive interventional treatment for tumors is divided into two types: endovascular interventional treatment and non-vascular interventional treatment. Endovascular interventional therapy accounts for 80% of the treatment. It is based on the principle that a very thin catheter is sent to the tumor blood supply vessels under DSA surveillance, and chemotherapeutic drugs are infused through the catheter to kill the tumor cells, and then substances (embolic agents) are injected through the catheter to block the tumor blood supply vessels, causing the tumor cells to die of ischemia and hypoxia (i.e. lack of nutrition) and starvation. The treatment is effective because of its dual action, and because it is minimally invasive and locally administered, it has mild systemic side effects. At present, interventional therapy has achieved significant results in the treatment of liver cancer, lung cancer, gastric cancer, kidney cancer, esophageal cancer, pancreatic cancer, bone tumors and gynecological tumors, and the survival of patients has been significantly prolonged, and some of them have reached clinical cure. Therefore, regardless of preoperative or postoperative, tumor patients who have lost the opportunity of surgery can undergo interventional treatment, which is called a “dark horse” among tumor treatment technologies in the medical field. Tumor patients can be effectively treated through comprehensive minimally invasive interventions. Extracorporeal interventional treatment refers to radiofrequency ablation of tumor, focused ultrasound knife, argon helium knife and tumor radiation particle implantation, as well as esophageal tracheal stenosis dilation and stent placement, biliary tract obstruction drainage and stent placement, etc., all of which have achieved positive efficacy. Patients with huge hepatocellular carcinoma have survived with tumor for ten years through comprehensive minimally invasive interventional treatment. In conclusion, interventional treatment of tumor has become one of the three major clinical treatment means, along with medical and surgical treatment. More and more patients and their families are consulting and receiving interventional treatment. The advantages of minimally invasive interventional treatment for tumor are as follows: 1.Small trauma: the skin incision is only about 2mm; 2.Strong targeting: it can be targeted directly to the tumor with little damage to normal tissues; 3.Fast recovery: it can usually be used for normal activities 12 hours after surgery and can be discharged from hospital in 3-7 days; 4.Repeatable: depending on the condition and treatment needs, it can be implemented in stages, multiple times and repeatedly; 5.Can be used in combination with multiple techniques: it can achieve the goal of modern interventional treatment. Combined application of multiple technologies: thus achieving the ideal effect of synergy, superposition and complementary advantages of treatment with the integration of modern medicine and high technology.