At present, we have improved and upgraded the traditional SPR surgery and treated children with spastic cerebral palsy with the new FSPR (Functional Selective Posterior Spinal Nerve Root Dissection), which has achieved excellent treatment results: the use of intraoperative evoked potentials and EMG recording technology to monitor the entire operation makes the operation more objective and overcomes the subjectivity of total reliance on experience to the maximum extent. It also makes the surgical treatment of cerebral palsy more scientific and brings the treatment of spastic cerebral palsy into a new era. FSPR, also known as “Phase I Cerebral Palsy Surgery”, is a highly selective cutting of la fibers under the monitoring of spinal nerve stimulator and electromyography, which eliminates the afferent impulses of muscles and reduces muscle spasm. The FSPR technique overcomes the deficiency of selecting the heel of the spinal nerve at the anatomical level (naked eye), and uses advanced positioning techniques. The procedure is more precise and effective, while avoiding complications such as medically induced paralysis and urinary and fecal incontinence. In the case of FSPR, we should pay attention to the fixed deformity of the limbs of children with cerebral palsy that affects the rehabilitation training. Children must undergo regular rehabilitation training treatment before surgery and have certain efficacy, but if there is a deformity that is difficult to correct and affects the improvement of motor function, it is appropriate to perform surgery to correct the deformity. When performing upper limb surgery, it should be noted that the motor function of the upper limb is more complex and has more fine movements, and the requirements for the treatment effect are higher, and it is hoped that the fine motor function of the hand will be restored. Therefore, to correct the deformity of the upper limb and restore the random motor function of the hand, it is required that the operator of the upper limb should have good intelligence, a strong desire for rehabilitation, be able to actively train after surgery, and have a certain degree of random motor function before surgery. As for patients with cerebral palsy with multiple joint deformities of lower limbs such as hip, knee and ankle, there are primary deformities and secondary deformities among the multiple joint deformities, and the primary deformities can be improved. Therefore, it is advisable to judge the primary deformity carefully before surgery and to correct it surgically. After surgery, the adjacent joints should be closely observed for a period of time, and the need for subsequent surgery should be carefully decided depending on the changes. The best time for FSPR surgery for cerebral palsy is from 2.5 to 6 years old, and after 6 years old, the deformation of the limbs will be more serious and the postoperative rehabilitation time will be longer. Its effect is the most direct and significant. Although FSPR surgery is effective, it should be kept in mind that it is only suitable for the treatment of spastic cerebral palsy, and the relationship between FSPR and second-stage surgery should be corrected. It is also important to keep in mind that cerebral palsy is very different from other orthopedic disorders and the outcome after surgery is also very different. It is wrong to think that a successful surgery is a great success. In order to prevent recurrence and improve the therapeutic effect, rehabilitation and orthopedic devices are necessary after surgery.