Balanced anesthesia with the potent opioid analgesics for cesarean section is preferential technique than N2O-O2 with single inhalation anesthetics due to avoid the decreased uterine muscle tone or vigorous postpartum blood loss. The 60 patients were randomly assigned to study the two group so that 30 patients were administered Buprenorphine(B group) or fentanyl(F group) anesthesia. The hemodynamic responses and recovery characteristics of the two groups were compared with each other. The patients who received the analgesics for postoperative pain control were observed. The results were as follows ; 1) The systolic and diastolic blood pressure at 10 min after injection of fentanyl was significantly lower than preinduction time. 2) The diastolic pressure at 10 minute after injection of buprenorphine was significantly lower than pre-induction. 3) There was no difference between the two patient groups in the blood pressure, the heart rate. 4) postoperative recall was 1 patients in the F group and 3 patients in B group. 5) The 24 patients were injected analgesics. Among them 10 patients(33.3%) were in the B group and 16 patients(53.3%) were in the F group. The authors conclude that balanced anesthesia with buprenorphine is a practical altemative technique to fentanyl for cesarean section patients.