Ultrasound-guided technology is an ultrasound instrument that accepts information sent from the body through ultrasound for image processing, and then displays an ultrasound anatomical sonogram on the screen, allowing dynamic, real-time monitoring of the body’s tissues, with high-definition resolution of nerves, muscles, tendons, blood vessels, bones, and bursal tissue of joints. This visualization technique brings excellent guidance to both anesthesiologists and pain physicians. The greatest advantage of ultrasound-guided peripheral nerve blocks is the ability to visualize the anatomy of the target area in real time. Studies have shown that high-frequency ultrasound allows anesthesiologists and pain physicians to grasp the position of the needle and the distribution of local anesthetics in real time, which improves the safety of the block, improves the block effect, and increases patient comfort compared to traditional peripheral nerve blocks.