The　paper　introduces　the　large-span　cable　dome　structure　of　the　National　Fitness　Center　in　Ejin　Horo　Banner,　Inner　Mongolia.　A　1:10　scale　cable　dome　model　was　designed.　The　model＇s　mechanical　performances　were　studied　under　design　load　after　shape　forming.　By　comparing　results　drawn　from　numerical　simulation　and　experiment,　the　characteristics　of　static　response　were　obtained.　The　influence　of　asymmetric　live　load　on　the　structure＇s　global　static　behavior　was　considered.　This　study　indicates:　cable　dome＇s　ridge　cable　stress　reduces　on　the　external　load;　the　initial　stress　can　be　adjusted　along　with　external　load;　the　cable　dome　is　a　flexible　space　system,　which　is　sensitive　to　external　load.　The　theoretical　value　and　the　experimental　value　matches　well　under　design　load,　which　verifies　the　result　of　the　theoretical　calculations　and　the　modal　design.　The　structural　safety　and　reliability　in　normal　working　condition　is　also　exhibited.