The paper gives the technical route of seismic risk assessment based on vulnerability curve of buildings,and clarifies the definition,the qualitative evaluation indicators,and the calculation model of seismic risk.According to the statistical data of the historical seismic disasters in China,to the classification of building types,and to some existing damage matrix,the paper put forward the vulnerability curves of six types of buildings,which are adapted to the building characteristic of Beijing district,as well gives the damage matrix,which are derived from the vulnerable curves,under the action of different PGA values.