Stability　of　the　closely　star-battened　member　of　a　power　transmission　tower　were　researched　in　this　paper,　a　theoretical　analysis　was　conducted　for　the　buckling　mode　of　the　closely　star-battened　member　by　different　plate　batten　arrangements.　The　analytical　method　of　the　buckling　capacity　on　the　closely　star-battened　member　was　proposed　here　considering　an　arrangement　type　of　the　plate　batten　and　they　are　compared　with　the　results　of　a　full-scale　test.　The　conclusions　are　follows:　the　flexuraltorsional　buckling　did　not　happened　for　the　closely　star-battened　member;　the　flexural　buckling　need　to　be　calculated　only　after　the　strength　reduction　factor　was　considered;　the　stability-bearing　capacity　of　the　closely　star-battened　member　of　the　line-shape　type　batten　is　slightly　less　than　that　of　the　cross-shape　type　batten;　the　stability-bearing　capacity　of　the　closely　star-battened　member　can　be　improved　when　the　number　of　bolts　in　the　plate　batten　increases　in　a　suitable　extent;　and　the　stability-bearing　capacity　calculated　and　test　results　agree　well　with　each　other　when　the　stability-bearing　capacity　analytical　method　of　the　closely　star-battened　member　was　used　to　analyze　the　full-scale　test　tower.　The　experimental　results　show　the　calculation　method　is　reasonable.