Abstract: Through the analysis of the geophysical characteristics, this paper believes that in Taojiagou area of Lüeyang County there is a breccia pipe composed of magnetite mineralized brecciate serpentinite. Based on the theory of magmatic separation mineralization, the authors predicted that the favorable place for copper-gold ore-forming was the conversion parts of the positive-negative magnetic anomalies and near the electrical anormaly gradient zone at the bottom of the Breccia pipe.