目的　描述腹腔镜辅助下先天性巨结肠改良Swenson手术方法 ,观察术后临床疗效。方法　采用全麻气管插管 ,腹壁 3个小孔进镜和操作钳。仔细辨认扩张段与正常肠管交界处 ,用超声刀游离结肠系膜 ,着重在直肠后间隙游离 ,直至齿状线上 0 .5～ 1.0cm。在腹腔镜辅助下将结肠从直肠内翻出至肛门外 ,按直肠肛管背侧纵切鸡心领斜口吻合方法进行吻合。观察 17例患儿术后并发症及排便情况。结果　 17例患儿经腹腔镜辅助成功完成手术 ,平均手术时间为 2 2 0min ,术后 2 4h大多能排气排便 ,术后平均住院时间为 7d。所有患儿未出现严重并发症并有良好的近期效果。结论　腹腔镜辅助下巨结肠根治术显著地减少围手术期并发症及缩短术后恢复时间 ,患儿易于接受 ,对有适应证患儿应推广使用。 Objective To describe the laparoscopic assisted Hirschsprung’s method of modified Swenson operation and observe the clinical curative effect. Methods General anesthesia tracheal intubation, abdominal cavity 3 holes into the mirror and operating clamp. Carefully identify the expansion segment and the normal bowel junction, with an ultrasonic knife free mesocolon, focusing on the rectum after the gap free, until the dentate line 0.5 ~ 1.0cm. In the laparoscopic assisted the colon from the rectum to the anus, according to the dorsal rectum longitudinal dilatation of the center of the beak anastomosis anastomosis. Seventeen children were observed postoperative complications and defecation. Results 17 cases of children underwent laparoscopic assisted surgery to complete the successful operation, the average operation time was 220min, 24h after surgery most of the exhaust defecation, the average postoperative hospital stay was 7d. All children had no serious complications and had good near-term outcomes. Conclusions laparoscopic-assisted radical gastrectomy significantly reduce the perioperative complications and shorten the recovery time, the children are easy to accept, should be promoted for children with indications.