Fault property judgment method based on electromagnetic exploration data

The invention belongs to the field of geological structure exploration and uranium ore resource exploration, and particularly relates to an electromagnetic exploration data-based fault property judgment method, which comprises the following steps of: acquiring an electromagnetic signal; processing the acquired electromagnetic signals to generate standard electromagnetic data; performing inversion processing on the standard electromagnetic data to obtain a section direction resistivity discrete value; interpolation is carried out on the resistivity discrete value, and an encrypted grid resistivity value in the section direction is obtained; gaussian low-pass filtering is carried out on the encrypted grid resistivity value, and a grid node resistivity value and a resistivity contour line after filtering are obtained; the resistivity isoline is corrected, and the rock stratum thickness is determined through the lithologic interface; according to the corrected coordinates of the grid points of the resistivity iso