In order to promote the international market development,China General Nuclear Power Group(CGN)has carried out the Generic Design Assessment(GDA)of UK and the European Utility Requirements(EUR)assessment.The structural integrity of the structures,systems and components in nuclear power plant is the focus of international review and certification.In order to meet the requirements of British nuclear safety supervision and EUR,the project team adopted the design concept of analytical method,and completed the structural integrity analysis,evaluation and design improvement of British and European versions of HPR1000 with mechanical analysis,test and demonstration as the key means,which fully met the requirements of British nuclear safety supervision and EUR.Through the HPR1000 international regulatory and certified review,the relevant technical requirements in the field of structural integrity are studied,and the practice and learning in the review process are summarized,which can support the continuous improvement and innovation of HPR1000 technology.