Abstract: Disclosed is a quantitative identification method of standard chart for shale lithofacies prediction, and relates to the field of shale oil and gas exploration and development. On the basis of logging data, the application designs the discrimination standard of shale lithofacies chart, maximizes the utilization of different types of logging curves, extracts characteristic logging curves, and constructs the identification system of typical lithofacies from two angles of absolute value and relative value of logging curves, thus avoiding the waste of original data sources and subjective errors in the identification process, finally realizing the identification of characteristic logging curves of typical shale lithofacies, and being beneficial to the subsequent research on spatial distribution of shale lithofacies facing the regional research area.