依据我国核安全法规要求,在核安全级应用软件开发过程中,应通过进行一系列的验证与确认(V&V)活动来证明其正确性和安全性.通过对法规标准的研究,结合工程应用经验,明晰V&V管理、工作流程、技术文件和V&V工具4个方面的V&V要求和方法,提出一套适用于核电站安全级DCS应用软件的V&V体系.该体系已经应用在某核电站项目中,保证了软件的质量和项目的成功实施.该体系在后续的华龙一号、AP1000等先进堆型项目中也具有较好的应用前景.“,”According to the nuclear safety regulations, verification and validation (V&V) activities should be carried out during the software development process. Based on the research of the regulations and standards and engineering experience, a suitable safety class DCS application software V&V system is established. This V&V system has been used in a nuclear power plant project, to ensure the quality of the software and the successful implementation of the project. The system also has good prospects in the follow-up projects, such as HRR1000 and AP1000 advanced reactors.