Аннотация:Soil resistivity can be calculated from petrophysical soil properties. That gives possibility estimate petrophysical properties on soil resistivity. Now we use forward petrophysical problem, petrophysical modeling and inverse petrophysical problem to analyze relations between soil resistivity and some petrophysical parameters. We show examples of petrophysical approach application in different situations of water resistivity, rocks composition, influence of lithology and permafrost.