Abstract: With the continuous deepening of gold exploration in the Jiaodong gold province, the mineralization information extraction capability and interpretation accuracy of surface detection technologies have declined. There is an urgent need to explore and apply more direct and effective borehole technologies that combine geological, geophysical, and geochemical methods. The systematic exploration of the Jiaojia gold belt at depths exceeding 2000m recently revealed large-scale gold-rich zones in the northern section of the Zhaoxian gold deposit, achieving significant exploration progress. Among these, borehole 120ZK07 recorded a singlehole cumulative ore thickness of 82.71m, representing the thickest deep ore body discovered to date. During the main mineralization stage, quartz-pyrite veins developed intensely, with ore body scale and mineralization intensity increasing toward deeper parts. It is inferred that the ore bodies extend vertically at 200m intervals above the top of an enriched ore section, crossing an upper weak ore interval in the plunging direction. For the first time in Jiaodong, five-azimuth surface-borehole transient electromagnetic measurement (SBTEM) was applied. The induced electromotive force curve characteristics of anomaly sections across loops show similarity, suggesting that alteration zones and ore bodies extend stably within a 200m radius around the wellhead. The description of the structure, alteration, and mineralization network delineates the depth of the mineralization indicator section in loop T1 from 1750m to 2060m, consistent with the known alteration zone orientation inferred from the shallow loop T3. Loops T2 and T4 along the strike, along with loop T5 extending deeper, were identified as their respective mineralization indicator sections. The structural superimposed halo characteristics of large-scale gold-rich zones indicate a coexistence of front and proximal halos and weak tail halos, suggesting they lie at the overlapping area between the tail end of upper rich ore segments and the front end of deep rich ore segments. The prediction of new large-scale gold-rich zones extends to depths of more than 200 m. The borehole integrated geological, geophysical, and geochemical exploration technology is widely applicable to deep prospecting in the Jiaodong gold province and in mineral deposits with similarly varying geophysical and geochemical properties.