This　paper　proposed　and　studied　the　method　of　simplifying　concrete　substructures　of　the　suspen-dome　prototype　structure　in　shaking　table　test　scale　model.　Firstly,　a　method　that　replaces　complex　concrete　substructures　of　the　suspen-dome　prototype　structure　with　steel　substructures　in　shaking　table　test　scale　model　was　proposed.　And　then,　a　dynamic　integral　scale　model　considering　substructures　was　established.　After　that,　the　natural　frequencies　of　the　model　were　obtained　by　conducting　white　noise　sweep　test.　Finally,　the　numerical　scaled　model　was　established　by　ABAQUS　software,　and　the　numerical　model　of　the　prototype　structure　was　established　by　Midas/Gen　software.　The　natural　frequency,　mode　shape,　and　seismic　response　of　the　scale　model　were　compared　with　the　prototype　structure.　It　is　observed　that　the　natural　frequencies　of　the　test　scale　model　were　very　close　to　that　of　the　prototype　structure　after　considering　the　scale　ratio,　and　the　scaled　model’s　first　five　modes　were　basically　consistent　with　that　of　the　prototype　structure.　Besides,　the　difference　in　acceleration　response　between　the　two　modes　is　also　small.　It　is　proved　that　in　shaking　table　test,　the　method　of　designing　the　integral　scale　model　of　replacing　complex　concrete　substructures　of　the　prototype　structure　with　steel　substructures　is　accurate　and　effective.　The　analysis　results　provides　a　reference　for　researchers　and　designers　to　more　conveniently　establish　scaled　models　of　suspen-dome　structures　in　shaking　table　tests.　Copyright　©　2023　by　Zetao　Zhao,　Suduo　Xue　and　Xiongyan　Li.　Published　by　the　International　Association　for　Shell　and　Spatial　Structures　(IASS)　with　permission.