目的：探讨小儿输尿管囊肿的内镜治疗。方法：对１９８８～１９９５年所治疗的５５例进行总结、分析。结果：５５例中男２４例，女３１例；开放性手术治疗１０例（半肾或肾切除５例，囊肿去顶术５例），经膀胱镜行囊肿电切开窗治疗４５例；去顶手术５例及电切开窗术４例因ＶＵＲⅣ～Ⅴ度又作了抗返流输尿管膀胱再植术。结论：囊肿电切开窗治疗，方法简单，损伤小，并发症少，可作为本病的首选治疗方法；电切部位选在囊肿基底部，不宜过大，术后应随访；囊肿大可引起尿路梗阻者宜作囊肿切除、输尿管膀胱再植术；囊肿侧肾发育不良或伴严重肾（半肾）积水者宜作肾（半肾）切除 Objective: To investigate the endoscopic treatment of pediatric ureteral cyst. Methods: From 1988 to 1995, 55 cases were treated and analyzed. Results: There were 24 males and 31 females in 55 cases, 10 cases were treated by open surgery (5 cases were treated by nephrectomy or nephrectomy, 5 cases were treated by cyst debridement) In 5 cases of top surgery and 4 cases of electrosurgical resection, anti-reflux ureter bladder replantation was performed in patients with VUR Ⅳ ~ Ⅴ degree. Conclusions: Cyst electric incision window treatment, simple, less damage, fewer complications, can be used as the preferred method of treatment of this disease; the location of the tumor is selected at the base of the cyst, should not be too large, should be followed up; cysts can cause large Urinary tract obstruction should be made for cyst excision, ureteral bladder replantation; cyst side of renal dysplasia or with severe renal (semi-renal) water should be used for renal (semi) renal resection