In this paper,the authors made use of three methods,including slip-average with variable amplitude,slip-residual and massive abrupt rate,to carry out systematically comprehensive processing for those data after groundwater chemistry network established in western Yunnan area.The correlation analysis between above results and more than 10M > 5.0 earthquakes in the neighboring areas shows that this network has very good reflecting earthquake ability,the efficiency of station-point is 0.67 and the efficiency of station-item is 0.53.The general response earthquake range is less than 100 km.Before earthquakes occurring within the network,all station-items have appeared background anomalies,the earthquake will take place after all pionts go into anomaly turning stage.The length of the anomaly duration and the magnitude of the anomaly amplitude are positive correlation with intensity and epicentre distance of the future earthquake.The short information is to be massive abrupt,about 40-50 days after massive abrupt rate reached peak and turned,and then the earthquake will occur.
Finally,we also discussed the near source field earthquake information observed by the groundwater chemistry network in western Yunnan area.