Titanium alloy was known as the intelligent metal in the 21 century. Because of its excellent properties, it played a key role in the welding of high temperature, high strength structure and special joints. As one of the mainstream technologies in the manufacture of high-end equipment, a great deal of attention is being paid today to its advanced welding technology. In this paper, the related properties and main application fields of titanium alloy were briefly introduced. Aiming at the three advanced welding technologies, such as laser welding, electron beam welding and linear friction welding, a review of forming process optimization, defect control, organization evolution rules and mechanical properties analysis were carried out.