Objective To observe the effect of single point acupuncture at Taichong（LR 3） on lowering blood pressure in patients with hypertension.Methods Sixty hypertension patients with the syndrome of liver yang hyperactivity were randomized into acupuncture group and Captopril group

30 in each.After medical elution for 7 days

the acupuncture group was treated with acupuncture at Taichong（LR 3） of both sides

once a day

while the Captopril group was administered Captopril

12.5mg each time

twice a day.Both groups were treated for 7 days in succession.The changes of blood pressure

symptom scores and heart rate were observed. Results After treatment

the systolic pressure

the 24-hour average systolic pressure and diastolic pressure

symptom scores

and decrease of heart rate were all significantly different from those before treatment（P<0.01）.But the decrease of average diastolic pressure of 24h dynamic blood pressure of both groups was not significant in statistics（P>0.05）. Conclusion The effect of acupuncture at Taichong（LR 3） on lowering blood pressure and improving the symptoms of hyperactivity of liver yang was better than that of Captopril.Acupuncture can decrease the heart rate at the same time of lowering blood pressure.