With the deepening of basic and clinical research on tumors, there are more and more treatment methods for cancer, such as surgical treatment, chemotherapy, radiotherapy, endocrine therapy, immunotherapy and so on. The treatment of tumors mostly adopts the comprehensive therapy which is mainly based on surgery and supplemented by other treatments, and surgery is only a part of the whole treatment process. Surgery is only one part of the whole treatment process. After surgery, chemotherapy, radiotherapy or other adjuvant treatments are usually needed. Whether the cancer recurs or not is related to multiple factors such as the pathological type of cancer, the stage of cancer, the treatment plan of cancer, etc. Cancer is easy to recur if it is treated by surgery alone. Currently, the basic principles of tumor treatment are: minimally invasive, targeted, precise and individualized. Interventional therapy, as an emerging new technology for cancer treatment different from surgery and internal medicine, can be broadly divided into two categories: endovascular therapy and non-vascular therapy, which has little damage, few side effects and high efficacy, and its development has brought the gospel for the recovery of tumor patients. Endovascular therapy is to insert a catheter into the blood-supplying artery of the lesion area under the guidance of X-ray, so as to give special treatment. Vascular interventional therapy for tumor is a characteristic therapy for cancer treatment, which is a minimally invasive treatment without incision, and is welcomed by patients for its small trauma and high efficacy. It has two main advantages: on the one hand, the high concentration of drugs is directly infused into the blood supply artery of the tumor to exert the maximum anti-tumor effect, i.e., to “poison the tumor to death”, which has little toxic side effect on the whole body; on the other hand, the drugs are mixed with embolizing agent to block the blood vessels of the tumor, so that the tumor is deprived of the blood supply for nutrition and “starved to death”. On the other hand, after mixing the drug and embolic agent, the blood vessels supplying the tumor will be blocked, so that the tumor will be deprived of blood supply and nutrients and “starve to death”, while the drug can also play an anti-tumor effect. This chemotherapeutic embolization technique is especially suitable for those who lose the chance of surgery or should not be operated for malignant tumors of liver, lung, stomach, kidney, pelvis, bone and soft tissues, especially for patients with primary liver cancer, due to the specificity of blood supply of liver cancer from a certain point of view, it can even replace the surgery as the first choice of treatment plan. The blood supply of normal liver is 25% from hepatic artery and 75% from portal vein, while the blood supply of hepatocellular carcinoma tissue is 90% from hepatic artery and 10% from portal vein. Hepatic artery cannulation for chemoembolization is to insert a catheter into the hepatic innominate artery or the lobar artery on one side of the cancerous tissues or even the trophoblastic artery of the cancerous tissues, and then slowly push the chemicals and embolic agents into the liver cancerous tissues and its surroundings under the fluoroscopic view of X-ray. In this way, not only the concentration of chemicals is maintained in the liver cancer tissues to kill a large number of liver cancer tissues, but also the liver cancer tissues are “starved to death” due to the reduced blood supply because of the embolization of the hepatic arteries. The blood supply to normal liver tissues will only be reduced by 25%, which is only “skin-deep”. According to statistics, the recent effective rate of treatment by this means can be as high as 80%. As liver cancer is usually found in middle or late stage, it cannot be cured by surgery. Through this means, the cancer mass can be shrunk so that it can be surgically resected. Patients with liver cancer, kidney cancer, stomach cancer and pelvic tumor can adopt this method. Non-vascular tumor interventional therapy refers to percutaneous puncture to the tumor localization to achieve the purpose of inactivating the tumor and reducing the tumor load through physical and chemical methods. Chemical ablation such as anhydrous ethanol: Determine the location, size and number of lesions, determine the puncture route with the help of puncture guide line, and set up the puncture position. Mark the puncture point and train the patient to breathe with the maneuver. Under the guidance of ultrasound or CT, the puncture needle will reach the center of the tumor, and the image will monitor the diffusion image of the injected ethanol in the tumor body, and it can be injected from deep to shallow or change the direction as appropriate, so as much as possible, so that it can be diffused to the whole tumor body. The dosage of ethanol injection is estimated by the diameter of the tumor, and the amount of each time is roughly 1ml per 1cm tumor diameter. 3-5cm tumor is injected about 2~5ml at one time, and according to the condition of the patients, it can be injected once at an interval of 7-10 days or once or twice a week l~2 times. 4-6 times is a course of treatment, and the total amount of the course of treatment is about 20-30ml, and the number of the course of treatment and the treatment of large hepatocellular carcinoma can be decided according to the specific condition of the patients. Withdrawal of needle, to prevent ethanol from overflowing in the needle channel, causing abdominal pain after withdrawing the needle, a small amount of anesthetic can be injected while withdrawing. After operation, the patient can stay in the room for observation for l-2h. For the first treatment or obvious postoperative reaction, the patient can stay in the hospital for observation for one day. When leaving the hospital, make an appointment for review and re-treatment time. Modern Radioactive Particle Knife – Cancer Treatment “Nuclear Weapon” radioactiveSeedsknife through the computer TPS system, the radioactive particles will be put into the cancer tumors, the particles continue to send out gamma rays, killing cancer cells, to realize the “targeted destruction of cancer cells”. “Directional destruction of cancer cells” is one of the most advanced tumor treatment technologies at present. No incision, little damage, quick recovery, high success rate, remarkable effect, few complications; patients are easy to accept. Modern multi-bullet radiofrequency technology – “burn” the tumor PercutaneousradiofrequencyRadiofrequencyablation (RFA) is guided by imaging equipment, and the 15G electrode needle is pierced through the skin. Through the guidance of imaging equipment, 15G electrode needle is inserted into the tumor by percutaneous puncture, the inner sleeve needle is pushed away, and 7-9 fine electrode needles are unfolded in umbrella shape at the top, after the electrode is energized, ionic shock and friction heat generation of the tissues within the electrode needle electric field occurs, which generates a spherical ablation foci and “burns to death” the cancer directly, making the tumor tissues dry and coagulate, and necrosis is achieved. The tumor tissue will be dried, coagulated and necrotic to achieve the therapeutic effect. Since the target is aimed at the cancer, it will cause less damage to normal tissues, which can reach or exceed the effect of open surgery. There is also a means of interventional palliative treatment of tumor, i.e. transcatheter decompression and drainage: many tumors often press the pipeline system of human body and cause the pipeline to be blocked, for example, pancreatic cancer, cholangiocarcinoma, gallbladder cancer, etc. can press bile ducts and make bile stagnate, resulting in obstructive xanthogranuloma, which, if not handled in time, can endanger the patient’s life. Adopt transcatheter decompression drainage, i.e. puncture the bile duct of liver through skin for decompression drainage, place drainage tube, and the jaundice can gradually subside in about 1 month. Pelvic tumors and retroperitoneal tumors can compress the ureter and lead to urinary tract obstruction, and catheter decompression surgery can also be used to relieve the symptoms of urinary tract obstruction. Without incision, it greatly reduces the pain of patients and opens a new way for the diagnosis and treatment of many cancers of biliary tract, pancreas, urinary tract and upper gastrointestinal tract. With the development of modern interventional radiology technology, minimally invasive interventional therapy makes some intractable diseases have a new treatment method, so that some operation is complicated, dangerous, more complications, poor results of the traditional diagnostic and therapeutic measures have become simple, safe, effective, fewer comorbidities, less pain, and faster recovery.