Background: This study compared the analgesic efficacy of the bilateral erector spinae plane (ESP) with that of the bilateral transversus abdominis (TAP) postoperative delivery with selected surgery. Methods: Sixty mothers scheduled for caesarean section under random surgery were randomly assigned to receive an ESP block or a TAP block. The ESP group received USG guided block with 20 mL 0.2% of ropivacaine at the T9 level corresponding to T10 transverse process e at the end of surgery. The TAP group received an ultrasound-guided TAP block containing 20 mL of 0.2% ropivacaine at the end of delivery. The main effect was the duration of analgesia achieved by each block. Measures of the second outcome were postoperative pain severity, complete diclofenac use, patient satisfaction.