摘要胃癌是常见的消化系统恶性肿瘤。中国胃肠肿瘤外科联盟数据提示：我国不同地区胃癌发病率、各分期肿瘤分布及诊疗水平存在较大差异，且不同医学中心数据记录也存在差异。因此，推行胃癌规范化诊疗与质量控制，建立规范化的胃癌数据库，促进全国范围内胃癌诊疗规范化、同质化、标准化非常重要。为此，国家癌症中心、国家肿瘤质控中心胃癌质控专家委员会起草并制订《中国胃癌规范诊疗质量控制指标（2022版）》，其中质量控制指标包括胃癌的影像学检查、病理学诊断、手术治疗、药物治疗、放射治疗及术后质量管控等。笔者针对胃癌手术淋巴结清扫范围、术后淋巴结检出的规范化和质量控制及数据库建设方面进行深入阐述。

abstractsGastric cancer is one of the common malignant tumors of the digestive system. The data from China Gastrointestinal Cancer Surgical Alliance suggests that there are great differences in the incidence of gastric cancer, the distribution of tumors in different stages and level of diagnosis and treatment in different regions of our country, and there are some differences in the data records of different medical centers. Therefore, it is very important to implement the standardized diagnosis and treatment and quality control of gastric cancer, to establish a standardized gastric cancer data-base, and to promote the standardization, homogenization and standardization of the diagnosis and treatment of gastric cancer in the country. As a result, the Expert Committee of Quality Control of Gastric Cancer of the National Cancer Quality Control Center drafts and formulates the Quality Control Index for Standardized Diagnosis and Treatment of Gastric Cancer in China (2022 Edition), in which the quality control index includes the aspects of imaging examination, pathological diagnosis, surgical treatment, drug therapy, radiotherapy and postoperative quality control of gastric cancer. The authors give a thorough elaboration on the lymph node dissection scope, standardization and quality control of postoperative lymph node detection and construction of database of gastric cancer.