Design and implementation of data interchange platform is an important issue in earthquake precursory industry, which adapts to extensive observatory networks and diverse observatory programs. However, it is a difficult problem since the data managed are likely to inefficient. Finding proper solutions to the aggregation, storage, and distribution of collected data is emergent. In this paper, we designed an efficient data interchange platform, which based on current grid technology, and the distributed database copying, for switching data over multilevel. Offered the appropriate equipment simulator, experimental results show that data interchange platform is more efficient in the earthquake precursory environment.