Objective To investigate the Scale (GMFM-88) before and 1 week, 3 months and 6 months after treatment. Results The scores of MAS decreased significantly 1 week, 3 months and 6 months after treatment (P<0.001). The scores of GMFM-88 increased 3 months and 6 months after treatment (P<0.001). Conclusion Injection of BTX-A guided by peripheral nerve stimulation is effective on spastic cerebral palsy.