On the basis of analysis and research on geological survey on the field, the description of core, log and test data analysis and comprehensive research, this paper proposed a qualificative and quantitative technology of recognizing oil shale effectively using well-logging data, and applied them in the Songliao Basin. The results show that the deviation between calculated oil yield and testing oil yield is relatively small using the linear relationship between oil yield of oil shale and the resistivity well-logging data and ΔlgR technology.