以实验测量数据为基础，研究了射频段岩石介电常数的频散现象和极化机理，分析了岩石介电常数与频率、含水饱和度、水矿化度、泥质含量等之间的关系，给出了双频介电测井解释方法。通过处理油田实际介电测井资料证明该方法是有效的。 Based on the experimental data, the frequency dispersion phenomenon and polarization mechanism of rock dielectric constant  in RF band are studied. The relationship between dielectric constant of rock and frequency, water saturation, water salinity and shale content is analyzed Relationship, given dual-frequency dielectric logging interpretation method. The method is proved to be effective by processing the actual dielectric logging data of the oilfield.