Taking the risk assessment of lightning disasters areas from an industrial park in an investment zone as an example, by collecting the soil resistivity from the evaluation area, CDEGs lightning protection and grounding software were used to carry out the soil structure inversion of the project, the mathematical model of soil structure was used to fit the actual measured value of soil resistivity and invert the true physical structure of the soil to obtain the distribution of soil resistivity in different regions and different depths and provide guidance for lightning protection and grounding design and construction during project.