国际原子能机构(IAEA)安全导则、国际电工委员会(IEC)和电气和电子工程师协会(IEEE)标准均为开展核电数字化仪表和控制(I&C)系统设计和审评活动的国际通用规范和主要依据，近年来进行了修订和更新，对I&C领域的新问题提出了相应的技术要求.为了更新我国的仪控标准，解决I&C审评实践中的问题，需要对更新后的国际标准规范的适用性进行研究.通过系统分析方法，介绍了IAEA安全导则、IEC和IEEE标准的更新情况及其对于人因工程、信息安全、商品级物项评价等方面的技术要求，并评估了更新后的国际标准对我国核电I&C系统设计和审评活动的适用性，对后续开展相关设计、审评工作以及标准规范更新具有一定指导意义.

International atomic energy agency (IAEA) safety guideline, international electrotechnical commission (IEC) standard and institute of electrical and electronics engineers (IEEE) standard are the common international norms and technical basis of the design and review for digital instrumentation and control (I&C) system used in nuclear power plant, and some of those have been updated in recent years with technical requirements for the new issues for I&C. To update China’s standards for digital I&C and solve the problems in review, the applicability of updated international standards should be studied. Through systematic analysis, the update of these three norms above were introduced, and their technical requirements of human factors engineering, cyber security, commercial grade dedication were also introduced. In addition, the applicability of updated international standards and norms for the design and review for I&C system in China’s nuclear power plant was evaluated. The study has certain significance for the follow-up nuclear safety design and review as well as updating of relevant standards and norms.