In order to investigate the effect of strain rate on the tension behavior of TC11 titanium alloy, uniaxial tensile tests were conducted on this material over a wide range of strain rate. The results demonstrate that as the strain rate increases from quasistatic to dynamic, the yield strength of the TC11 titanium alloy increases slightly. The reduction of the strain hardening modulus is found under dynamic tension. Furthermore, the TC11 titanium alloy fails in shear under both the quasistatic and dynamic tension. However, the dimple size under dynamic fracture is smaller than that under quasistatic loading. By analyzing the temperature rise in the material during deformation, it is found that the easier strain softening and the smaller dimple size on the fracture surface at high strain rate may be attributed to the higher temperature rise.