The paper introduces briefly the application of remote sensing technique in engineering routing, site selecting and survey. It describes the application characteristics of remote sensing in engineering geology and thought that the application differs from that in other fields. It also points out that the application in China differs from that in other countries due to different national conditions. The paper discusses with emphasis on some issues in application, including the interpretation and processing of remote sensing images, date comprehensive analysis, application of remote sensing in the engineering construction stage, etc.