The　microstructures　and　mechanical　properties　of　a　new　type　near　α　high　temperature　titanium　alloy　Ti-6.5Al-2.5Sn-9Zr-0.5Mo-0.25Si-1Nb-1W-0.3Re　(wt.　%)　(denoted　as　TA6.5)　were　investigated.　It　was　observed　that　the　microstructure　of　forged　TA6.5　mainly　consisted　of　deformed　lamellar　α　phase,　small　amount　of　equiaxed　α　phase,　and　residual　β　phase,　exhibiting　high　strength　and　comparatively　low　elongation.　Three　different　heat　treatments　processes　were　performed　on　forged　TA6.5.　The　results　showed　that　all　heat　treated　alloys　displayed　high　tensile　strengths,　and　the　values　of　strength　parameters　were　almost　unchanged　with　the　increasing　solution　temperature,　ascribing　to　the　combination　effects　of　decreasing　primary　α　phase　and　increasing　contents　and　widths　of　secondary　α　phase　and　lamellas.　The　tensile　elongations　of　heat　treated　alloys　tested　at　650　decreased　slightly　with　the　increasing　solution　temperature,　which　is　due　to　the　increased　width　of　secondary　α　lamellas　and　the　generation　of　coarse　grain　boundary　α　phase.　TA6.5　treated　in　the　process　of　990　/1　h/AC+700　/4　h/AC　exhibited　excellent　comprehensive　mechanical　properties,　i.e.　the　ultimate　tensile　strength　of　829　MPa,　yield　strength　of　707　MPa　and　elongation　of　18.73%　respectively.　©　2020　Trans　Tech　Publications　Ltd,　Switzerland.