Abstract: In recent years,the growing demand for deep and concealed orebody exploration in the geological prospecting field has significantly advanced the process of deep-targeting exploration through the widespread application of electromagnetic equipment,particularly the transition from the V8 electrical workstation to wide-area electromagnetic sounding devices.Based on the similarities in fundamental principles and field operation procedures between the V8 electrical workstation and wide-area electromagnetic sounding equipment,this study proposes an innovative method for wide-area processing of controlled-source audio magnetotelluric (CSAMT) sounding data collected using the V8 electrical workstation.Comparative analyses of data processing results from 3 real cases demonstrate that this approach effectively simulates and achieves the exploration performance of wide-area electromagnetic equipment.It enhances data interpretation accuracy and exploration target depth without requiring additional hardware investment.The wide-area processing method for CSAMT data represents a significant improvement and innovation in traditional electromagnetic exploration technology and exemplifies the development of new quality productive forces in the field of mineral exploration.