Abstract: In recent years, Northwest Nonferrous 713 General Team Co., Ltd. has successively carried out geophysic exploration work such as IP middle stage in Chigou ore rights area, and gained Many achievements, but the information about Chigou rock mass distribution, rock and ore controlling fault structure, rock contact zone and other information is not fully clarified. Based on the newly completed gravity, magnetic and electric comprehensive geophysical prospecting data of Chigou Cu-Mo deposit, combined with the existing geological and borehole data in the study area, gravity, magnetic force and AMT data were processed, and the characteristics of gravity and magnetic anomaly field in the area were comprehensively analyzed, the rock and ore controlling fault structure was delineated and the main magma invasion channel was found. The intrusion range of concealed rock mass closely related to mineralization was determined, and two concealed and semi-concealed rock masses were delineated. The geophysical field characteristics of concealed rock mass, contact zone of rock mass and mineralized body are clarified, and the contact zone of rock mass and stratum is the main metallogenic site. The favorable prospecting area is predicted, and the prospecting breakthrough is obtained through drilling verification. The research results have important reference significance for further exploration of copper and molybdenum deposits in this area.