Earthquake prediction is an undertaking of public welfare.But earthquakes cannot be successfully predicted at present due to technological reasons.Earthquake prediction should be studied earnestly to adapt the demand of society for earthquake prediction at present.In order to study the possiblity of predicting the Wenchuan M8.0 Earthquake occurred on May 12,2008, based on the earthquake information itsself, this paper has suggesed a kind of numerical modeling method for predicting the earthquake magnitudes,and a method for predicting seismogenic areas by means of the Outgoing-Long-Wave-Radiation (OLR) information of satellite remote sensing. The results show that it is a technically feasible approach.