Lumbar spondylolisthesis refers to a condition in which the structure of the vertebral body is altered by congenital or traumatic injury, and structural instability causes abnormal stability between the vertebral body and the vertebral body, and misalignment between the superior and inferior vertebral bodies. Lumbar spondylolisthesis can be divided into four degrees according to the severity. The misalignment of two vertebrae can be seen on the lateral radiograph. It is divided into four equally. If the misalignment is more than 1/4, it is called degree I. If it is more than 1/4-2/4, it is degree II, if it is more than half, less than 3/4, it is degree III, and if it is more than 3/4, it is called degree IV slippage. Generally, for slippage within II degree, most of the definition is mild, for more than II degree is defined as severe, even some patients are more serious, for complete slippage. According to the concept of slippage grading to determine the severity of the disease and choose the treatment plan. 1.Conservative treatment when the patient has mild symptoms: bed rest, application of non-steroidal anti-inflammatory drugs, traction, brace protection, can effectively relieve the symptoms 2.Congenital lumbar spondylolisthesis I: within and no obvious symptoms, no special treatment is needed, and the patient is advised to treat symptomatically if he has mild lumbar pain symptoms; congenital lumbar spondylolisthesis I°~II° or above II, and the patient has neurological symptoms of lumbar pain, surgical lumbar spinal canal decompression should be performed, lumbar spine The patient should undergo surgical lumbar spinal canal decompression, lumbar spinal repositioning, internal fixation and bone graft fusion. 3, degenerative lumbar spondylolisthesis or isthmic cleft lumbar spondylolisthesis: patients with obvious symptoms of lumbar and leg pain should undergo surgical lumbar spinal canal decompression, lumbar spondylolisthesis repositioning, internal fixation and bone graft fusion.