目的探讨无瘤技术在腹腔镜大肠癌根治术中的应用价值。方法分析34例大肠癌患者实施腹腔镜下大肠癌根治术的临床效果,提出遵循无瘤技术及肿瘤根治术原则。结果34例(100%)均完成腹腔镜下肿瘤根治术。手术时间为138～246min,平均为184min。随访3～24个月,5例(14.7%)复发或转移,均未发现有穿刺鞘部位种植。结论腹腔镜下大肠癌根治术中只要严格遵循无瘤技术的原则,可取得与开放手术相同的近期疗效。 Objective To investigate the value of tumor-free technique in laparoscopic radical resection of colorectal cancer. Methods The clinical results of 34 patients with colorectal cancer who underwent laparoscopic radical resection of colorectal cancer were analyzed. The principle of tumor-free technique and radical resection was proposed. Results All the 34 cases (100%) completed laparoscopic radical mastectomy. The operation time was 138 ~ 246min, with an average of 184min. Follow-up 3 to 24 months, 5 cases (14.7%) recurrence or metastasis, no puncture sheath site implantation was found. Conclusions As long as the principle of tumor-free technique is strictly followed in laparoscopic radical resection of colorectal cancer, the same short-term curative effect as open surgery can be obtained.