In the anesthesia for the Cesarean section, the anesthetists should select the agent and technique carefully which is safe for both the mother and baby. If a light plane of general anesthesia is chosen for fetal safety and rapid recovery, there may be increased incidence of maternal recall and intraoperative pain perception. We studied the effect of nalbuphine(N group) and fentanyl(F group) used as main analgesics in balanced anesthesia in 60 full term parturients, ASA physical status class I or II, scheduled for elective Cesarean section. The patients were questioned for recall, pain perception and unpleasant dreams during anesthesia. The results were as follows, 1) The 12 patients had positive reactions. Among them, 3 patients(10%) were in the N group and 9 patients(30%) in the F group. 2) The sedation was more in the N group(30%) than in the F group(6.6%). We concluded that the balanced anesthetic technique using nalbuphine caused less maternal recall and pain perception with more sedation than using fentanyL.