The main advantages of subchannel opening microscopic disc fibular ring repair include: 1, the establishment of a working channel under the channel, small incision, small trauma, and fast recovery. 2, under the channel microscopic light source, direct vision of the protruding nucleus pulposus, and the ruptured annulus fibrosus, clear surgical field, can target the removal of the lesion protruding nucleus pulposus tissue, without damaging the normal intervertebral disc and surrounding nerve tissue, less risk. 3.Minimally invasive suture instrumentation, simple operation, targeted smaller suture needles can be more firmly sutured to the ruptured annulus fibrosus, giving the annulus fibrosus to shape, to prevent recurrence of disc herniation.