The design of data monitoring and display system of Earthquake Administration of Tianjin Municipality use Java language and Mysql database. The system has measured seismic data, precursory data, environmental data, seismic events, earthquake station information query and display functions, standardizing all kinds of data format, changing data storage method, quering earthquake station basic information. Facilitate the scientific research personnel through the browser to the data retrieval and visualization display, to further improve the ability of data visualization display.