Objective To observe the effect of acupuncture at th e specific acupoints of Shaoyang Channel on acute migraine and establish the sta ndard for non-acup oint positioning.Methods Ninety migraine patients were randomized into treatment group（Sh aoyang specific acupoint group）

control group A（non-acupoint group A） and con trol group B（non-acupoint group B）

with 30 in each.Each group was given acup uncture for 30 minutes.The immediate effect was evaluated by visual analogue sc ale（VAS） scores and headache i ntensity before treatment and in 0.5

1

2 and 4 hours after treatment.Results There was no significant difference in VAS scores be tween the treatment group an d control group A（P>0.05）

but with significant difference between the tre atmen t group and control group B（P<0.01）.Half an hour or one hour later

there was no significant difference among groups in headache intensity（P>0.05）.Tw o hours or four hours later

the differences between the treatment group and two cont rol groups in headache intensity were statistically significant（P<0.01）

b ut there was no significant difference between two control groups（P>0.05）.Conclusion Acupuncture at specific acupoints of Shaoyang C hannel is effective in alleviating the acute migraine attack.It could provide c linical support for the specificity of channel-point effect.