The　effect　of　near-isothermal　forging　temperature　on　the　microstructure　and　mechanical　properties　of　Ti-Al-Sn-Zr-Mo-Nb-W-Si-Er　near　α　high　temperature　titanium　alloy　was　investigated　by　near-isothermal　forging　at　the　strain　rate　of　0.01s−1　and　80%　deformation.　The　results　indicated　that　near-isothermal　forging　temperature　of　1050°C　is　relatively　low.　After　forging　at　1050°C　the　grain　growth　is　not　obvious　and　original　β　grain　as　well　as　intragranular　lamellar　are　fine.　By　comparison,　the　alloy　forged　at　1120°C　possessed　typical　basket　weave　microstructure.　With　the　increase　of　near-isothermal　forging　temperature,　the　tensile　strength　and　plasticity　of　the　alloy　decrease.　Excellent　comprehensive　mechanical　properties　could　be　achieved　in　the　alloy　after　forging　at　temperature　1050°C.　©　2017　Trans　Tech　Publications,　Switzerland.