Cerebral palsy is a non-progressive brain injury caused by various causes from prenatal to 1 month after birth, mainly manifesting as central motor deficits and postural abnormalities. The cause is unclear, the pathology is diverse, and there is no cure. The best treatment option is motor function training, combined with surgery and medication for symptomatic treatment. Cerebral palsy is usually divided into spastic, tardive dyskinesia, tonic, ataxic, hypotonic, and mixed types. The spastic type accounts for 60-70% of patients, the tardive dyskinesia type accounts for 20% of patients, and the remaining types are rare. Selective posterior spinal nerve rhizotomy (SPR) is currently the preferred surgical procedure for the treatment of spastic cerebral palsy. It is performed by selectively cutting the posterior spinal nerve roots to relieve excessive muscle tone and spasticity, prevent and correct various deformities, improve abnormal posture and motor ability, and obtain greater functional recovery. Surgery can be performed in the lumbosacral and cervical regions, with the former being the most common. Indications for surgery: 1. simple spasticity with muscle tone above grade 3, 2. no obvious fixed contracture deformity or only mild deformity, 3. certain motor ability of the spinal limbs, 4. intelligence close to normal and can cooperate with post-surgical rehabilitation, 5. severe spasticity and rigidity that affects daily life, care and rehabilitation. Contraindications to surgery: 1. low intelligence, unable to cooperate with rehabilitation training, 2. weak muscle strength, low muscle tone, 3. tardive dyskinesia, ataxia and torsional spasm, 4. severe fixed spastic deformity of the limbs, 5. severe spinal deformity and spinal instability. The efficiency of lumbosacral SPR in relieving lower limb spasticity is 90-95%, the functional improvement rate is 75-80%, and the average reduction of muscle tone is 3 levels. There was also some improvement in upper limb spasticity and salivation, speech and articulation. The efficiency of SPR surgery on the cervical segment for upper limb spasticity was 64-83%, with an average reduction of 3 levels of muscle tone. Postoperative standardized and long-term rehabilitation should be emphasized so that better functional improvement can be obtained. Complications: Complications include abnormal sensation, dullness or loss of sensation, numbness, pain, deep sensory deficits, abnormal two-point discrimination, and hypotonia or hypertonia in the early postoperative period. Later, abnormal sensation, intractable pain, unremitting or recurrent spasticity may occur. Limb weakness, bowel and intestinal dysfunction, lumbar spine deformation and spinal instability.