Ti-662 alloy is successfully researched by NewYork university in US and is a kind of high strength α＋β titanium alloy developed based on Ti-6Al-4V titanium alloy, which is famous with good comprehensive performance. Ti-662 alloy is of excellent oxidation resistance, weld ability and corrosion resistance. At the same time, the high V content and Sn element bring high strength and performance, which tensile strength can reach to 1050MPa in annealed condition and reach to 1175MPa after quench and aging treatment at 450℃ temperature. Hence, Ti-662 alloy is much better than Ti-6Al-4V alloy on hardening and effect of heat treatment. At the meanwhile, it is broader than Ti-6Al-4V alloy on performance tuning range. At present, this kind of alloy has attracted more and more attention.