Infantile spastic cerebral palsy is dominated by damage to the conus systemic bundle, and the main manifestations are as follows. I. Abnormal posture-motor pattern, mainly whole body flexor pattern, range of motion becomes smaller, insufficient anti-gravity extension, such as the appearance of arch-back sitting. Second, abnormal posture-motor development. Early infants and toddlers show that their postural-motor development lags behind that of their peers, usually by more than three months. Abnormal reflex development, delayed disappearance of primitive reflexes and delayed appearance of protective reflexes. Muscle tone and muscle strength are abnormal, with increased muscle tone and increased flexor muscle strength in the extremities, mainly in the extensor muscles of the trunk and upper extremities, part of the flexor muscles and part of the extensor muscles of the lower extremities. The upper limbs show palmar flexion of finger joints, hand clenching, thumb inversion, palmar joint flexion, forearm internal rotation, elbow joint flexion, shoulder joint internal rotation, upper limb posterior extension internal rotation and inversion, lower limbs show pointed foot, horseshoe inversion and valgus, knee flexion or hyperextension, hip joint flexion and inversion, lower limbs inversion, toe pointing and scissor gait when walking.