Groundwater quality evaluation method based on geophysical and hydrological data fusion

The invention discloses an underground water quality evaluation method based on geophysical and hydrological data fusion, which comprises the following steps of: acquiring apparent conversion resistivity data by using a resistivity sounding method, and acquiring hydrogeological stratified data, electrical logging data and mineralization degree analysis data of a drilling well; correcting the conversion resistivity data by using the electric logging data; constructing a three-dimensional model of the multi-layer aquifer structure based on the hydrogeological stratified data, and optimizing the spatial resolution of the model by using the corrected and converted resistivity data; determining a salty water interface according to the corrected and converted resistivity data; and according to mineralization degree analysis data of the drilling well and the average correction conversion resistivity beside the drilling well, determining a mineralization degree-resistivity correlation mathematical model of each aquif