直肠癌术后吻合口漏是常见的并发症[1-2],若不能及时发现和处理,可导致严重的后果甚至危及生命。随着腹腔镜技术的进步,超低位(肿瘤下缘距肛缘≤5 cm)直肠癌保肛手术成为可能。但腹腔镜直肠癌术后具有与传统手术相似 Anastomotic leakage after rectal cancer is a common complication [1-2]. Failure to detect it in time can result in serious consequences and even life-threatening conditions. With the progress of laparoscopic techniques, ultra-low (lower edge of the tumor from the anal margin ≤ 5 cm) anal sphincter preservation surgery possible. However, laparoscopic resection of rectal cancer with similar surgery