Ti-3Al-8V-6Cr-4Mo-4Zr has a wide range of mechanical properties. The alloy is commonly used for springs and fasteners in aircraft and automobile industry, tubing in oil and gas wells, and for wires in sporting goods. This work is aimed at the analysis of Ti-3Al-8V-6Cr-4Mo-4Zr alloy behaviour during the tensile tests realized at dynamic as well as quasi-static conditions. In this research a non contact and material independent measuring system ARAMIS was applied. The influence of tensile test strain rate on selected mechanical properties was investigated. The nature of tensile fracture surfaces of the investigated alloy was also discussed. The investigations showed a significant influence of processing strain rate on the mechanical behaviour of the investigated alloy. The results of this research work can be helpful in the design of Ti-3Al-8V-6Cr-4Mo-4Zr alloy structural parts operating under high strain rate conditions.