The whole structure of Xinjiang digital earthquake precursory observation network, the basic information of digital earthquake observation instruments and the precursory observation data management mode and so on are also given.

Data mining algorithm and seismic data visualization method is researched on the basis of current digital seismic precursor observation data,a feasible visual data mining model based on seismic precursor observation data is designed,hence aids the earthquake forecast with decision analysis support.

In this paper, the whole sharing process of simulated precursory observation data of Tianjin network is composted by six parts.

The capacity of the response to earthquake of the precursor observation in Qingdao;

The paper briefly outlines the current situation of the seismic precursor observation in Qingdao, introduces the project of the digital precursor network of Qingdao, its scientific basis and technical aspect are introduced for discussion with the colleagues.

It is not only an extension of the application of artificial neural network model but also a new try for precursor observation to serve the earthquake prediction better that we use it in the analysis of earthquake precursor observation data.