Current status of minimally invasive interventional therapy for tumors: In the new century, minimally invasive interventional technology for imaging-guided tumors has been developing rapidly in the global medical field because of its unique advantages. Its main features are small trauma, which can destroy tumors in situ and protect the organism to the maximum extent, which is the direct driving force for the progress of clinical oncology in recent years. The main components of vascular interventions are local perfusion chemotherapy and embolization of tumors through selective intubation of blood vessels, while the main components of non-vascular interventions are the use of various forms of physical factors, chemical factors and genes as therapeutic sources, which can be directed to the target area through minimally invasive or non-invasive pathways. The main content of non-vascular intervention is to use various forms of physical factors, chemical factors and genes as therapeutic sources, and to make these therapeutic factors reach the target area through a minimally invasive or non-invasive route, so as to inactivate the tumor cells in situ, thus achieving the purpose of local eradication of tumor. Features of minimally invasive interventional therapy: precise localization and accurate treatment; sequential combination of multiple minimally invasive treatment methods; minimally invasive treatment and multidisciplinary comprehensive treatment of tumor; minimally invasive treatment of radical tumor: local and regional minimally invasive interventional treatment combined with systemic multi-level treatment; humanized and rationalized treatment; minimally invasive lymph node dissection of tumor. At present, the common techniques of minimally invasive interventional therapy: transvascular interventional therapy: transvascular interventional therapy is to insert a catheter into the lesion site via blood vessels, and then inject various different drugs or/and embolic agents into the lesion tissue through the catheter to block the supply vessels of the tumor and greatly improve the local drug concentration of the tumor to achieve the purpose of improving the therapeutic effect and reducing the side effects. Transcatheter interventions mainly include: transcatheter arterial embolization (TAE); transcatheter arterial infusion chemotherapy (TAI); transcatheter arterial chemoembolization (TACE); dual chemoembolization of hepatic artery and portal vein (TACE+PVCE). Non-vascular interventions mainly include: ultrasound or CT-guided percutaneous interventions; targeted thermal therapy: which also includes: 1. radiofrequency therapy (PRFA); 2. laser coagulation therapy (ILP); 3. microwave coagulation therapy (MCT); 4. high-intensity focused ultrasound (HIFU Helio knife); targeted cryotherapy (argon helium knife), etc.