It's been almost six years since Yushu 7.1 earthquake in 2010, and the rebuilt Yushu takes on an entirely new look, especially in buildings. Compared the vulnerability of buildings before the earthquake and the vulnerability of reconstruction buildings after the earthquake, great changes have taken place. In this paper, the disaster caused by Yushu 7.1 earthquake is reviewed briefly first. Second, the information about the vulnerability of the reconstruction buildings was acquired by field investigation. Finally, an analogy method was employed to modify the Damage Probability Matrixes of buildings which are similar to them in construction technique and materials. The modified Damage Probability Matrixes can reflect the vulnerability of the rebuilt buildings.