The quasi-static and dynamic compression mechanical performances of the U-Ti alloys aged at 200 oC for 4 h were tested by a mechanical equipment and Split Hopkinson Pressure Bar (SHPB) at room temperature. The adiabatic shearing characters of U-Ti alloys after dynamic compression were analyzed by SEM and OM. The results show that the U-Ti alloys are sensitive to strain rate because there is strengthening effect of strain rate. The 45o shear fracture had been yielded in the U-Ti alloys at the strain rate of 3600 s-1. Both the 45o shear fracture and ablative deformation were observed in U-Ti alloys when the strain rate reached 5000 s-1. Refusion phenomenon was found on the 45o fracture surface at the strain rate of 7300 s-1. The fracture morphology exhibits dimple character of plastic metal.