Objectives: To evaluate the efficacy of local anesthetic infiltration on the postoperative pain after caesarean section. Patients and Methods: A prospective randomized control trial was designed to assess the analgesic efficacy of 20 ml 0.5% Bupivacaine solution infiltration in the rectus sheath space and surgical wound compared to control group, in two groups of 50 parturient for each group, who underwent Caesarean section under spinal anesthesia: group II (Bupivacaine group) and group I (Control group). All parturients also received spinal anesthesia. Postoperative pain scores using the visual analogue scale and the total amounts of Pethidine used were assessed at 30 minutes, 2, 4, 6, 8, 12and 24 hours. Results: Bupivacaine infiltration in the rectus sheath space and the subcutaneous tissue for Caesarean delivery before wound closure leads to a reduction in the overall consumption of analgesics (70.44±30.44 mg for group II versus 120.544±25.44 mg for group I with P < .05), especially in the first 24 hours, and also significantly increases the time interval until the first request for an analgesic (5.114±0.457for group II versus for 8.112 ±0.348 group I). There was significant difference in the visual analogue scale in the two groups. It was lower in group II than group I in all time intervals. Conclusions: This technique can contribute towards providing effective postoperative analgesia, a program of early rehabilitation in sectioned mothers, with earlier discharge from the post labor suite.