Abstract: To address the resource depletion crisis and overcome the bottleneck in deep exploration at the Paishanlou Gold Mine, this study collects 271 rock samples from seven mining levels（with elevations ranging from 330 to 175 meters） along four exploration lines（No. 0, 6, 12, and 16）. By systematically analyzing the content of 20 trace elements and employing methods such as correlation analysis, cluster analysis, and factor analysis, the geochemical characteristics of the primary halo are revealed. Furthermore, a deep orebody prediction model is established based on the theory of tectonic superimposed halos. The results indicate that the primary halo in the mining area exhibits distinct axial zoning and elemental combination differentiation. The optimal indicator elements for the front halo are arsenic（As） and antimony（Sb）; the near-ore halo consists of silver（Ag）, lead（Pb）, As, Sb, and bismuth（Bi）; the supra-ore halo is gold（Au）±（copper（Cu）-Ag）; and the tail halo comprises vanadium（V）, manganese（Mn）, cobalt（Co）, and titanium（Ti）. The orebodies exhibit a southwestward plunge at depth, and a third ore belt is predicted to exist in the deep part of the east-west trending ore belt. Based on these findings, targets BQ1, BQ2 and BQ3 are delineated. Engineering verification at target BQ1（levels 175-200 m） successfully discover orebodies, adding 200 kg of gold metal resources. This research provides a theoretical basis and technical support for deep exploration of ductile shear zone-type gold deposits in Western Liaoning.