Since　the　seismic　performance　of　prefabricated　underground　structures　is　not　yet　clear,　they　not　have　been　constructed　in　high　seismic　intensity　areas　or　poor　sites.　This　paper　aims　to　study　the　applicability　of　rectangular　prefabricated　(semi-rigid　prefabricated,　ASF,　and　rigid　prefabricated,　AMT)　underground　structures　in　soft　soil　sites　located　in　high　seismic　intensity　areas.　The　structures　were　compared　with　cast-in-place　(CIP)　underground　structures.　Three-dimensional　soil-structure　interaction　advanced　finite　element　models　were　established　to　simulate　the　seismic　behavior　of　the　three　types　of　underground　structures　(ASF,　AMT　and　CIP)　constructed　in　two　different　sites　(soft　rock　site　and　soft　soil　site).　The　pre-earthquake　stress　states,　dynamic　responses,　and　post-earthquake　performance　states　of　the　three　underground　structures　were　systematically　analyzed,　considering　various　static　and　dynamic　conditions.　Additionally,　the　results　of　dynamic　time　history　were　compared　with　those　of　the　standard　procedures　available　in　the　literature.　The　results　demonstrated　that:　i)　site　conditions　have　a　significant　effect　on　the　structures＇　static　and　dynamic　responses,　ii)　the　seismic　response　in　soft　soil　site　is　much　larger　than　that　in　soft　rock　site,　but　the　ratio　of　response　of　prefabricated　underground　structures　to　that　of　CIP　is　almost　the　same　for　both　soft　soil　and　soft　rock　sites.　Furthermore,　as　the　peak　ground　acceleration　in-creases,　the　percentage　difference　of　inter-story　displacement　ratio　(IDR)　between　ASF,　AMT　and　CIP　under-ground　structures　in　soft　soil　site　decreases,　and　iii)　prefabricated　underground　structures　can　be　used　in　both　soft　rock　and　soft　soil　sites.　In　addition,　the　seismic　performance　of　ASF　is　better　than　that　of　the　AMT　structure,　which　is　better　than　that　of　the　CIP　structure.　However,　when　the　ASF　structure　is　built　in　a　site　with　high　seismic　intensity　and　poor　soil　conditions,　special　consideration　must　be　given　to　waterproofing　measures　for　wall-slab　joints　or　setting　up　tongue　and　groove　to　improve　the　connection　stiffness　and　reduce　the　deformation.