Abstract: Objective To observe the therapeutic effect of scalp electroacupuncture on Parkinson disease (PD) of grade 1.5-3.0 on Hoehn-Yahr scale. Methods Thirty patients with Parkinson disease were randomized equally into the treatment group and control group. Patients in the treatment group were treated by scalp eletroacupuncture at the contralateral points of MS6, MS4, MS8, MS9 and MS14 in cases of unilateral lesions or at the bilateral points for bilateral lesions, with also medication with Madopar. The patients in the control group were given Madopar only. The scores of Webster scale and the motor function of United Parkinson’s Disease Rating Scale (UPDRS) were used to for assessment before and after the therapeutic course (6 weeks). Results Tremor, rigidity and bradykinesia were obviously improved in both the groups (P<0.05). The difference in the score of Webster scale was not significant between the two groups (P>.05), but the treatment group showed greater improvement in motor functions than the control group (P<0.05). Conclusion Scalp electroacupuncture is effective and safe for therapy of Parkinson disease.