Abstract: According to the requirements of the pre-assessment service and earthquake emergency disposal, we collect the pre-assessment survey data of Sichuan in recent ten years , and with a deeply mining, classification and coding, this database structure is designed.At last, we establish a database for pre-assessment survey data to realize fast query of pre-assessment survey data, statistics, calls and other functions.which promoting the transformation of pre-assessment achievements.And also it realizes the scientific, standardized and systematic management of pre-assessment survey data, and provides data guarantee for earthquake disaster risk management and earthquake emergency information services.