Objectives : Aim of this study was to investigate the antihypertensive effect of Korean Hwa-Acupuncture in hypertensive patients. Methods: We measured the blood pressure of 14 patients who were admitted in the Oriental Medical Clinic of Balance & Harmony Korean Acupuncture Association from 25th March 2006 to 21th July 2006. Eligible participants had systolic blood pressure ${geq}120mmHg$ diastolic blood $pressure{geq}80mmHg$. Blood pressure and pulse rate measurements were after the patient had been bed rest for at least 30 min. 10 times of Hwa-Acupuncture treatment over 3 weeks period were performed in the patiants. To evaluate the effect of the Hwa-Acupuncture, the blood pressure, pulse rate were measured 2 times before and after each acupuncture treatment for total of 10 times. Results : After 3 weeks, there were significant decreased in the systolic blood pressure(P<0.0297) and significant decreased in diastolic blood pressure(P<0.0223) treated by Hwa-Acupuncture 10 times but pulse rate was failed to decreased. The effects of Hwa-Acupuncture by measuring time on blood pressure were as follows : systolic blood pressure were deceased significantly from 1st to 10th visit (P<0.0207) but diastolic blood pressure and pulse rate was not decreased significantly. Conclusion : The results suggest that Hwa-Acupuncture is effective in decreasing the systolic blood pressure.