In this paper, the authors systematically studied the gravity and magnetic data obtained from the study area in combination with geology and drilling results. Gravity and magnetic field was processed, fault structures was inferred, the distributional features of residual gravity and magnetic anomalies with ore spots were analyzed, and the favorable areas for Mo prospecting was discussed. The results show that the main faults of the study area can be divided into 3 groups: nearly EW-trending faults, NE-trending faults and NW-trending faults. The intersectional points of the EW-trending fault with the NE-trending fault not only controlled the emplacement space of the magmatites but also governed the location of the Mo-bearing bed. Mo-bearing beds are distributed in low gravity anomaly, the tongue-shaped part where low residual gravity anomalies grade into high residual gravity anomalies, and the boundaries of the positive and negative aeromagnetic anomalies, associated with negative magnetic anomalies in the study area. Based on geological structure and the features of residual gravity and magnetic anomalies with ore spots, combined with geochemical anomalies and features of ore-controlling fractures, the authors delineated four favorable ore-prospecting areas.