Based　on　the　suspend-dome　structure　of　Badminton　Arena　for　2008　Olympic　Games,　some　analyses　about　suspend-dome　and　single　layer　shell　including　force,　deformation,　eigenvalue　buckling　and　nonlinear　buckling　are　conducted　respectively,　the　excellent　properties　of　the　suspend-dome　are　showed.　The　characteristic　of　Lamella＇s　type,　rib-loop　type,　rib-loop　tilted　bar　type　suspend-dome　are　studied,　the　results　indicate　that　Lamella＇s　shell　type　suspend-dome　is　the　most　effective　type.　The　influence　of　the　size　of　the　shell　lattice,　the　rise-span　ratio,　the　height　of　strut,　the　initial　geometrical　defect　and　the　prestressing　value　of　cable　are　analyzed,　and　some　engineering　valuable　conclusions　are　drawn　for　practical　design.　Programs　with　the　axis　force　and　the　joint　displacement　of　the　upper　dome　as　object　functions　are　developed　respectively,　the　effective　method　of　the　prestressing　value　is　developed.　The　optimum　methods　which　this　paper　presented　are　adopted　in　the　design　of　Badminton　Arena　for　2008　Olympic　Games,　and　an　optimal　Suspend-dome　is　got　with　span　of　93m,　rise　of　9.3m　and　rise-span　ratio　1/10,　the　largest　Suspend-dome　structure　in　the　world.