In　order　to　research　the　mechanical　performance　of　single,　mid-hollow　and　laminated　point　supported　tempered　glasses　used　in　monolayer　cable　net　point-supported　glass　walls　under　fire　condition,　load　tests　were　conducted　on　three　groups　tempered　glass　with　holes　under　the　same　fire　conditions.　The　development　of　displacement　with　temperature,　failure　modes,　failure　time,　and　mechanical　performance　of　point　supported　tempered　glass　under　fire　condition　were　mainly　investigated.　By　comparing　the　test　data　of　specimens　with　and　without　openings,　the　impact　of　marginal　holes　on　the　mechanical　property　and　mechanical　performance　of　tempered　glass　under　fire　condition　was　studied.　The　results　indicate　that　the　tensile　stress　caused　by　uneven　heating　expansion　on　the　surface　is　the　main　reason　of　the　failure　of　glass.　The　uniform　load　sustained　by　glass　panel　would　produce　stress　inside　the　glass,　which　results　in　the　increase　of　out-of-plane　deformation　of　glass.　Lots　of　micro-cracks　produced　by　holes　lead　to　strength　degradation　and　stress　concentration　of　glass　panel　around　the　holes,　thus　expediting　the　destruction　of　point　supported　tempered　glass.　The　deformation　of　four　edges　of　point　supported　tempered　glass　is　restrained　by　its　fixed　support,　resulting　in　the　acceleration　of　the　increasing　rate　of　central　displacement.　©　2016,　Science　Press.　All　right　reserved.