Abstract: The lithology profile of Baer Depression in Hailar Basin is complex, which not only exists in the volcanic lava and sedimentary rock, but also has the transition lithology of volcanic rock. Conventional logging curve of obvious characteristics, better reflect the ability of large sedimentary thickness of lithology, but for the deposition of thin thickness, complex composition of transition rocks, often need to on the basis of the lithologic variation for the judgment. Based on the analysis of the relationship between the main lithology and well logging response of the Baer depression in Hailar basin, this paper presents and establishes 4 kinds of logging response patterns of the lithologic profile, and gives the corresponding well examples. The application of the logging response model of continuous lithologic profile will greatly improve the identification accuracy of the thin and complex composition of the transitional lithology.