Minimally invasive transforaminal approach interbody fusion is a new lumbar spine fusion technology method for lumbar disc herniation, lumbar spinal stenosis, discogenic low back pain, lumbar isthmic fracture, lumbar spondylolysis, as well as part of the lumbar spine tuberculosis, and lumbar spine infections in the surgical treatment. Application note: Patient female, 55 years old, low back pain for more than 2 years, aggravated for 6 months : CT film: L5–S1 disc herniation, calcification: MR: L5–S1 disc dehydration, degeneration, herniation, endplate degeneration, left nerve root compression: percutaneous implantation of pedicle screws: establishment of decompression and fusion channels: completion of compression and fusion, postoperative X-ray: incision: traditional incision: incision is smaller than that of conventional surgery, but the Minimally invasive surgery is not cosmetic surgery. The essence of minimally invasive TLIF is to avoid glassing the muscles and to reduce the occurrence of postoperative low back pain.