Ti and its alloys have been widely used because of their excellent comprehensive properties.In order to meet the requirement of market,science and technology,great attentions were paid to new Ti alloys.R & D of new Ti alloys developed by China was made big progresses in recent 5 years.Their research scale is enlarged and their materials varieties are improving.This paper reviews the development of some typical Ti alloys in China in recent 5 years and quantitative design of new high strength Ti alloys.