A　new　high-temperature　titanium　alloy　containing　erbium　was　designed　and　fabricated.　The　influence　of　α+β　forging　process　and　β　forging　process　on　microstructure　and　mechanical　properties　of　the　alloy　was　studied.　The　microstructure,　mechanical　properties　and　fracture　morphologies　of　the　new　high-temperature　titanium　alloy　after　different　forging　processes　were　characterized.　The　results　showed　that　the　forging　process　significantly　affected　the　microstructure　of　the　alloy.　The　alloy　exhibits　nearly　equiaxed　microstructure　and　lamellar　microstructure　after　α+β　and　β　forging,　respectively.　In　addition,　there　were　Er-rich　phases　in　both　forged　alloys.　The　alloy　with　nearly　equiaxed　microstructure　acquired　a　satisfactory　comprehensive　performance.　However,　the　alloy　with　lamellar　microstructure　had　higher　strength　and　less　plasticity.　The　tensile　fracture　of　the　alloy　after　α　+　β　forging　had　more　dimples,　while　cleavage　plane　was　obvious　in　the　alloy　after　β　forging.　Owing　to　the　addition　of　erbium　and　the　formation　of　Er-rich　phases,　forged　alloys　possess　excellent　strength.　The　Er-rich　phase　might　be　the　main　reason　for　the　fracture.　©　2017　Trans　Tech　Publications,　Switzerland.