Abstract: According to the needs of earthquake disaster information management system in Henan Province, the structure of earthquake disaster database is designed by using PowerDesigner software, the basic disaster information database is established, and the centralized control, management and sharing of data are realized. The design process and technical requirements of the database are described in detail, which can serve for "diversified and automated disaster data collection means and intelligent disaster data processing". Meanwhile, it can also provide reference for other disaster database construction and the application of PowerDesinger in database design.