To　investigate　the　distribution　characteristics　of　prestressing　force　and　static　characteristics　of　the　rib-patterned　small　rise-span　ratio　suspend-dome　structure,　a　1:20　scaled　model　of　the　Lanzhou　Olympic　Gymnasium　roof　structure　was　established.　During　to　the　small-scale　ratio　model　with　dense　nodes,　according　to　the　principle　of　constant　structural　stiffness,　a　multi-node　synchronous　loading　device　was　designed.　The　construction　tensile　loading　test　and　multi-stage　static　loading　test　were　carried　out.　The　axial　force　of　rods,　vertical　displacement　of　nodes,　and　radial　displacement　of　supports　for　the　model　with　initial　geometric　imperfection　under　11　load　cases　were　tested.　Test　results　were　used　to　validate　and　then　refine　the　numerical　simulation　using　ABAQUS.　The　study　shows　that　a　multi-node　synchronous　loading　device　dramatically　improved　the　loading　efficiency　and　satisfied　the　accuracy　requirement　of　the　test.　The　test　results　were　in　good　agreement　with　the　simulated　results,　which　verified　the　correctness　of　the　finite　element　modelling　method,　the　accuracy　of　the　test　method,　and　the　rationality　of　the　measuring　point　arrangement.　The　small　rise-span　ratio　suspend-dome　structure　with　a　rib　-patterned　has　good　elasticity　at　a　low　load　level.　The　full-span　arrangement　of　the　live　load　is　the　most　unfa-vorable　load　case　of　the　structure.　The　outer　loop　cable　bearing　capacity　exhibited　a　higher　proportion.　The　third　ring　rod　was　found　to　sustain　the　highest　load,　the　outer　ring　rod　is　more　sensitive　to　load,　and　the　fourth　circle　node　was　found　to　have　the　largest　vertical　displacement　in　the　model.　The　change　of　support　displacement　in　practical　engineering　should　not　be　neglected.