Percutaneous endoscope-assisted lumbar discectomy is referred to as the foraminoscopic technique, which was developed on the basis of percutaneous automated discectomy and aspiration. The procedure is performed under local anesthesia by percutaneous puncture of the lateral posterior lumbar spine, and a 7.5 mm diameter surgical working channel is inserted directly into the disc or spinal canal through the intervertebral foramen, and the protruding or prolapsing disc causing pressure is directly removed under endoscopic visualization. Since the operation is performed under local anesthesia, the surgical incision is about 8 mm, the important ligamentous structures of the lumbar spine are not destroyed, the stability of the lumbar spine is not significantly affected, the nerve roots and the dural sac are not stretched, the nerve tissue in the spinal canal is not significantly harassed, and no bleeding and adhesions in the spinal canal are caused, which has the advantages of small surgical trauma, short postoperative bed time, lower surgical cost and faster recovery. It is one of the minimally invasive surgeries with good results.