Magnetotelluric exploration evaluation method and system

The invention provides a magnetotelluric exploration evaluation method and system. The method is executed based on a processor of a magnetotelluric exploration evaluation system, and comprises the following steps: acquiring historical geological data of a mine area, human activity information at a plurality of preset time points, and power equipment operation information at a plurality of preset time points; acquiring a plurality of groups of original electromagnetic monitoring data; determining at least one group of electromagnetic monitoring spectrums based on the human activity information at the plurality of preset time points, the power equipment operation information at the plurality of preset time points and the plurality of groups of original electromagnetic monitoring data; determining at least one group of mine geological evaluation information based on the at least one group of electromagnetic monitoring spectrums; and determining a mine geology inference result from the at least one group of mine