Interventional ultrasound is a branch of modern ultrasound medicine, which was formalized at the World Interventional Congress in Copenhagen in 1983. Its main feature is direct percutaneous puncture under the dynamic monitoring or guidance of real-time ultrasound, and placement of puncture needles or catheters into lesions, cystic cavities or ductal structures for diagnostic and therapeutic purposes, which can avoid certain surgical procedures and can achieve results comparable to surgery. Interventional ultrasound is part of interventional imaging, and physicians can choose different imaging techniques for guidance and monitoring depending on the clinical situation: e.g., X-ray, CT, MRI, etc. to perform various interventional procedures. Ultrasound imaging has the advantages of dynamic, real-time, high sensitivity, accurate guidance, no X-ray damage, easy operation and low cost, thus it is developing rapidly and widely used, and occupies an important position in modern medicine.