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秦山二期核电厂反应堆堆芯核设计吸取了近年来压水堆电厂先进的设计思想，采用低线功率密度堆芯，提高了堆芯的安全裕度；不同富集度的燃料组件和可燃毒物的合理布置，改进了堆芯的物理特性；采用ＯＵＴ－ＩＮ、四分之一换料方式提高了燃料利用率，卸料比燃耗达到３５ＧＷ·ｄ／ｔ（Ｕ），同时满足了年换料制的要求．采用了先进的和经过验证的计算方法和计算机程序，这些程序经受了大亚湾和秦山核电厂数据的设计检验，因而提高了设计的可靠性。在设计中体现了先进性、安全可靠性和经济性的特点．
Reactor core design of Qinshan Phase II NPP draws on the advanced design concept of PWR power plants in recent years and adopts a low-line power density core to improve the safety margin of the core. Different enriched fuel assemblies and combustible poison Of the rational arrangement of the core to improve the physical properties of the core; the use of OUT-IN, a quarter refueling way to improve fuel efficiency, discharge than the fuel consumption reached 35GW · d / t (U), while meeting the annual change Material requirements. The use of advanced and proven computational methods and computer programs that have undergone design verification of the Daya Bay and Qinshan Nuclear Power Plant data enhances the reliability of the design. In the design reflects the advanced nature, safety and reliability and economic characteristics.