Urinary stones in children are a rare disease with an incidence of about 2-3%. Choosing a treatment method for pediatric urinary stones depends on the size and location of the stone, as well as the patient's age. This research to report a case of a 5-year-old child with left pelvic ureteral stones. We used specialized urological endoscopic instruments for children to perform retrograde endoscopic surgery with a Holmium laser energy source to dissolve stones. The surgery process went smoothly, only took about 20 minutes, and anesthesia time was very short. After surgery, the child was stable with high cosmetic results. The patient was discharged after 3 days and no complications were recorded during follow-up. Through this case, we would like to share our experience in endoscopic ureteral lithotripsy surgery using laser energy in children.