摘要自2019年中国医师协会内镜医师分会消化内镜专业委员会、中国抗癌协会肿瘤内镜学专业委员会发布《中国消化内镜诊疗相关肠道准备指南（2019，上海）》以来，随着国内人群对于结肠镜检查的需求普遍加大，国内消化内镜技术得以飞速发展，质量控制体系逐渐健全，人工智能评价领域逐渐开展。为进一步更新相关进展，中华医学会消化内镜学分会结直肠学组牵头拟定本共识意见，聚焦结肠镜检查前的肠道准备，借鉴国内外最新的相关研究，并邀请国内消化领域专家进行讨论及修改，对各推荐意见的证据质量及推荐强度进行评估并投票。本共识意见主要从结肠镜检查前肠道准备的必要性、质量控制及质量评分、常用肠道清洁剂的推荐使用策略、提高肠道准备质量的有效措施、肠道准备的个体化应用、肠道准备的宣教方式共6个方面分别进行阐述，对结肠镜检查前相关肠道准备的实施与策略提供指导性建议，供临床医师参考。

abstractsSince the Digestive Endoscopy Special Committee of Endoscopic Physicians Branch of Chinese Medical Association and Cancer Endoscopy Committee of China Anti-Cancer Association published Chinese guideline for bowel preparation for colonoscopy ( 2019, Shanghai) in 2019, the demand of people for colonoscopy has generally increased, the domestic endoscopy technology has rapidly developed, the quality control system has gradually improved, and the artificial intelligence evaluation has gradually developed. In order to update relevant progress, the Colorectal Group of Digestive Endoscopy Branch of Chinese Medical Association took the lead in formulating this consensus, which focused on the bowel preparation before colonoscopy and referred to the latest studies. Domestic experts in the field of digestion were invited to discuss, modify, evaluate and vote on the evidence quality and recommendation strength of each recommendation. This consensus mainly consists of six parts of content, including the necessity of bowel preparation before colonoscopy, quality control and quality score, recommended strategies of common intestinal laxatives, effective measures to improve the quality of bowel preparation, individualized application of bowel preparation and education methods of bowel preparation, and provides guidance and suggestions on the implementation and strategies of bowel preparation before colonoscopy for the reference of clinicians.