通过仔细分析密闭取心井岩石油水饱和度数据的损失机理，在对岩心测量数据进行岩性、物性分类和多元回归的基础上，提出了一套饱和度资料的校正方法。它是对饱和度数据的脱气、挥发等损失的一个总的校正，具有较高的精度，并使校正后油水饱和度两项数据之和为１００％，取得了较好的效果。 By carefully analyzing the loss mechanism of oil-water saturation data of closed-coring wells, a correction method of saturation data is proposed based on lithology, physical property classification and multiple regression of core measurement data. It is a total correction of the degassing, volatilization and other losses of the saturation data with high precision and the sum of the two data of the corrected oil-water saturation is 100%, which achieves good results.