On the basis of the formation of some traditional Tibetan constructions,such as the Yongbu Lhakang and the Jokhang Temple,the paper analyzes the process of the traditional Tibetan architecture style and alien styles.It points out that,based on its own native architecture style,Tibetans absorb many alien architecture styles and mixes them with their own style.This represents an innovative spirit,which is more important than the ancient architecture itself.