Introduction: The assessment of pain in small children is often difficult to interpret as the most common sign of pain is crying which is also seen in a myriad of non pain full conditions. Epidural space in children favours rapid longitudinal spread of drugs and makes it effective in treating postoperative pain. Aim: The aim of this study was to evaluate the efficacy of caudal bupivacaine alone or in combination with butorphanol for postoperative analgesia in children undergoing infra-umbilical surgeries. Materials and Methods: A Simple Randamoized which includes 50 patients posted for urogenital operations such as herniotomy, orchidopexy, urethroplasty and CTEV Correction divided into two groups of 25 each. Group B received 0.25% plain bupivacaine and Group BB received 0.25% Bupivacaine with Butorphanol adjuvant. The effect of recovery from caudal blockade and duration of analgesia was compared and contrasted. Results: There were no significant changes in heart rate, blood pressure and oxygen saturation between two groups. Postoperative pain score was comparable in two groups in first eight hours, but it is significantly less in bupivacaine with butorphanol group which is statistically significant. There is a significant difference between the groups in the mean duration of analgesia with Group BB having a much longer duration compared to Group B. 3 patient in Group B and 5 patient in Group BB had nausea in postoperative period, which is statistically insignificant (p>0.05). No episodes of any other clinically significant postoperative complications were recorded. Conclusion: Butorphanol is considered to be a safe and effective adjuvant to Bupivacaine for caudal analgesia in children undergoing surgery below umbilicus.