Objective：To observe the clinical effect of electroacupuncture for cervical vertigo and the effect of blood supply of vertebro-basilar artery.Methods：Divided 120 cases of patients into two groups randomly，60 cases in each group.Due to a loss of follow-up and expulsion，55 cases were completed in the control group and 57 cases in the observation group.The control group was given flunarizine hydrochloride tablets and betahistine mesilate tablets for treatment；the observation group receivedelectroacupuncture，and both groups were treated for 3 weeks.Evaluated the scores of evaluation scale for cervical vertigo(ESCV)and clinical assessment scale for cervical spondylosis(CASCS)as well as cervical degeneration degree before and after treatment； recorded end diastolic velocity(EDV)， peak systolic velocity(PSV)， resistance index(RI)and pulsatility index(PI)of vertebro-basilar artery before and after treatment by means of doppler ultrasound.Results：The total effective rate was 92.98%in the observation group，higher than that in the control group being 78.18%，difference being significant(P ＜ 0.05).After treatment，the scores of ESCV in respect of dizziness(degree，frequency and duration)，neck and shoulder pain，headache，daily life and work，psychology and social adaptation were all increased，degree of cervical degeneration was improved， scores of CASCS were significantly increased，PSV and EDV were both increased，RI and PI were both decreased in the two groups，and compared the indexes with those before treatment，differences being significant(P ＜ 0.01，P＜ 0.05)；Each score of ESCV and CASCS in the observation group was higher than that in the control group，PSV and EDV were both faster than those in the control group，and RI and PI were both lower than those in the control group，differences being significant(P＜0.01，P＜0.05).Conclusion：Electroacupuncture can relieve dizziness and concomitant symptom of patients with cervical vertigo，improve cervical function and blood supply of vertebro-basilar artery，and its clinical effect is better than that of oral western medicine treatment.