Objective:To observe the clinical efficacy of electroacupuncture stimulating projection zone of decussation of pyramid combined with rehabilitation training on the muscular hypertonia after stroke. Methods72 patients with muscular hypertonia after stroke were randomly divided into the treatment group and control group, 36 cases in each group. The treatment group was treated with electroacupuncture(100 Hz continuous wave)stimulating projection zone of decussation of pyramid combined with rehabilitation training, while the control group was only treated with rehabilitation training, with a course of one month. The clinical efficacy was observed, the changes of modified Ashworth scale (MAS) score and simplified Fugl-Meyer assessment (FMA) score of upper and lower extremities were compered.  Results:①In the treatment group, the effective rates were 68.8% in upper extremity and 75.0% in lower extremity. In the control group, the effective rates were 43.8% in upper extremity and 50.0% in lower extremity. The effective rate of lower extremity was obviously higher than that of upper extremity in the treatment group (P<0.05), and the effective rates of upper and lower extremities in the treatment group were higher than those in the control group (P<0.05). ②In both groups, there were statistically significant differences on MAS scores and FMA scores of upper and lower extremities between treatment before and after (P<0.05). After treatment, the MAS scores of upper and lower extremities in the treatment group were significantly lower than those in the control group (P<0.05), while the FMA scores of upper and lower extremities in the treatment group were significantly higher than those in the control group (P<0.05).  Conclusion:Electroacupuncture(100 Hz continuous wave)stimulating projection zone of decussation of pyramid can obviously relieve the muscular hypertonia after stroke, and the improvement on lower extremity muscular tension is better than that on upper extremity.