Using high temperature Hopkinson pressure bar test system,TB6 titanium alloy reducts the quality test 3000 s - 1 strain rate respectively, which is at different temperatures (550℃-850℃) and dynamic compression mechanical properties test, and get the material in different temperature and strain rate under the coupled action of true stress-strain curve, the temperature of the material flow stress and strain rate sensitivity. The experimental results show that under the condition of high strain rate, material has a certain strain rate strengthening, plasticizing effect, with the increase of temperature, the effects of the adiabatic heating thermal softening strenghthen, shear zone length increases. materials in 750 ℃ show abnormal strain rate softening phenomenon, shear band bifurcation may be the cause of strength decreased.