1. Catheter interventional technology: The minimally invasive interventional method is applied to make the catheter enter the tumor blood vessels, so that the chemotherapeutic drugs can reach the tumor site directly, which can obviously increase the anti-cancer effect and reduce the systemic toxic reaction; embolize the tumor blood supply artery, which can put the tumor cells in ischemic “starvation” or even “shock” state; make the tumor ischemic and necrotic, so as to improve the survival quality, prolong the life time and reduce the pain of patients. It can also embolize the tumor blood supply arteries and put the tumor cells in ischemic “starvation” or even “shock” state; make the tumor ischemic and necrotic, so as to improve the survival quality, prolong the life time and reduce the pain of patients. 2.Radioactive particle implantation technology (particle knife): Radiation therapy is one of the main treatment means for malignant tumors, which can be divided into two methods: external radiation and internal radiation. Internal radiation is to implant radioactive particles directly into tumor tissues, so that the tumor can be killed with maximum destruction. Applying CT-guided positioning technology and three-dimensional treatment planning system, targeted treatment of tumors is less invasive, with low complications and precise efficacy. As one of the important means of comprehensive treatment for advanced and recurrent cases, 3. tumor targeted ablation technology: under CT-guided positioning, tumor-destroying drugs are injected into tumor tissues through micro puncture needles to kill tumor cells and embolize and destroy tumor nutrient blood vessels to maximize tumor destruction and reduce systemic toxic reactions. Clinical indications: liver cancer, lung cancer, kidney cancer, pancreatic cancer, esophageal cancer, stomach cancer, cervical cancer, prostate cancer, nasopharyngeal cancer and other malignant tumors.