Abstract: A systematic analysis and processing of the relation between the fault deformation network in the Beijing -Tianjin area and earthquakes by part of the principle and method of system science (Information theory ) is reported in this paper. The result of the study indicates that the fault deformation network in the Beijing-Tianjin area, where the faults are related to the occurrence of earthquakes, exhibited obvious features of colonies of anomalies before the Tangshan earthquake of 1976 With this feature, there is special meaning to the prediction of earthquakes with magnitude 7.0 in the time of the coming year, with in the range of 150 km.