We report the pediatric case of ileal Crohn's disease in which the patient underwent transumbilical single-incision laparoscopic ileocecal resection. A 14-year-old boy with severe growth disturbance presented with intestinal obstruction. Transanal double-balloon enteroscopy and contrast study during endoscopy revealed a cobble stone appearance and a severe stricture 15 cm in length located slightly proximal to the ileocecal valve. There was no evidence of fistula or abscess formation. Ileocecal resection was performed via an umbilical incision with conventional laparoscopic instruments, and the postoperative course was uneventful. Single-incision laparoscopic ileocecal resection is a good procedure for uncomplicated Crohn's disease patients in childhood.