The conventional treatment for ureteral calculi in children has been ureterolithotomy. Recently, an eight-year-old boy who had a lower ureteral stone underwent semirigid ureteroscopy and pulsed dye laser lithotripsy. No dilatation of urethra or ureteral orifice was necessary. The ureteral stone was disintegrated completely and passed spontaneously. There were no infectious or adverse anatomic or functional consequences. The improvements in smaller semirigid ureteroscopes in conjunction with lasertripsy will expand its applications in the treatment of pediatric urolithiasis. Related literature is reviewed. The techniques and complications of ureteroscopic stone manipulation in children are discussed.