The area of seismic exploration is often located in remote areas, and is always lack of terrain data. The digital elevation model data of Google Earth (GE) are based on SRTM and have a high precision. Based on the batch extraction of elevation data from GE, the authors analyzed the accuracy of elevation data between mountains and plains. The results show that GE elevation data and actual elevation data are consistent with each other whether in the mountains or plains; The accuracy of elevation data in plain area is higher than that in mountain area. The elevation data from GE can be used to produce contours and analyze the system parameters.