In　this　paper,　centrifuge　shaking　table　tests　were　performed　to　evaluate　the　seismic　response　of　the　nuclear　power　plant　buried　in　dry　sand　site.　Based　on　the　principle　of　similarity　of　stiffness　and　mass,　a　simplified　buried　nuclear　power　structure　was　firstly　designed.　The　developed　simplification　methodology　and　similarity　theory　enable　experimental　investigation　of　large,　complex　structures.　And　then,　centrifuge　shaking　table　tests　were　carried　out　to　evaluate　seismic　response　of　a　nuclear　power　plant　buried　in　dry　sand　site.　Results　show　that　as　excitation　levels　increase　(0.2g,　0.35g,　and　0.5g),　both　site　and　structural　responses　increase,　accompanied　by　a　decrease　in　the　system＇s　dominant　frequency　and　a　growing　difference　between　site　and　structural　accelerations.　The　structure　exhibits　excellent　seismic　performance,　remaining　elastic　under　0.5g　loading　with　a　maximum　strain　of　658　με.　However,　significant　and　asynchronous　site　and　structural　settlements　(up　to　680　mm　and　440　mm,　respectively,　at　0.5g)　raise　concerns　regarding　potential　impacts　on　the　functionality　of　the　power　plant　and　connected　infrastructure.　These　findings　contribute　to　nuclear　power　plant　siting　assessments　and　provide　valuable　validation　data　for　numerical　modeling.　©　2025