Enjoying failures of lithotripsy extracorporeal and ureteroscopy, the laparoscopic ureterolithotomy keep a place in the first-line treatment of ureteric stones. Instead of laparoscopic surgery in the therapeutic arsenal of ureteral stones is not yet defined, this technique seems useful in large ureteral stones and requires experienced surgeons in laparoscopic arsenal and technical facilitie. the main objective of our studie is to assess results of laparoscopic ureterolithotomy from 08 cases after failure of extracorporeal lithotripsy for 03 cases in order to demonstrate the effectiveness and safety of Laparoscopic ureterolithotomy in the treatment of ureteral stones and to identify predictors of failure.