疾病诊断相关分组(DRG)是世界公认较为先进成熟的住院患者医疗保险费用支付方式之一，我国各区域(包括台湾地区)在探索过程中出现众多DRG版本，其中分组设计是核心区别。作者选取若干权威DRG版本，对其分组设计的特征进行细致比较，发现不同版本主要在编码系统的选择、病案数据入选的住院天数标准、主要诊断大类的分组等方面存在差异；而不同地区的DRG推行策略亦与区域大小、地区疾病状况、医疗保险支付能力等密切相关。“,”Diagnosis related group(DRG) is one of the most advanced and mature payment methods of inpatient medical insurance in the world. There are many versions of DRG in various regions of China(including Taiwan) in the process of exploration, among which grouping design is the core difference. The author selected several authoritative versions and made a detailed comparison on the characteristics of their grouping design.It was found that there were differences in the selection of coding system, the standard of hospitalization days for selecting medical record data, and the grouping of major diagnostic category among different versions. The implementation strategies of DRG in different regions were closely related to the size of the region, the disease status of the region, and the payment ability of medical insurance, etc.