HPR1000 is the "China’s business card" in "the Belt and Road" initiative,and also the mainstay and strategic task of the nuclear power development of China General Nuclear Power Corporation. The reactor pressure vessel is the "heart" of the nuclear power plant. It is the second barrier to prevent the release of radioactive materials and the core to fix and contain the internal components of the reactor. CGN HPR1000 reactor pressure vessel adopts brand-new core structure,with higher manufacturing technology standard,more difficult process, maximum pressure of rate of progress and the highest quality risk. Through wide and comprehensive analysis and research,China Nuclear Power Engineering Co.,Ltd. implements a whole domain,in-depth and improved enhanced administration of quality supervision in the first HRP1000 reactor pressure vessel manufacturing process,and eight measures are adopted simultaneously,which creates the domestic and overseas million kilowatt nuclear pressure vessel nuclear power unit critical path of zero defect "Hualong" quality and of the world’s shortest manufacturing cycle "Hualong" speed.