Abstract: The result of high-precision magnetic survey is a comprehensive reflection of the magnetic difference of deep rocks (ore),which contains abundant shallow source information and deep source information.The occurrence and distribution of physical structure surfaces are identified through the treatment of polarization,extension and derivation and interpretation of high-precision magnetic survey anomalies in Ziyoutun Copper Gold District,and the morpho-logy and occurrence variation characteristics of metallogenic geological bodies at different depths are determined.The Ziyoutun copper gold mineralization is jointly controlled by the strata lithology,fault and magmatic rock mass of Daheshen Formation of Permian,and the ore(mineralization) body occurs in the form of veins and lens.According to the results of high-precision magnetic survey interpretation,the ore-controlling structure and the distribution and occurrence of the metallogenic geological characteristics are determined.Based on the analysis of the ore-controlling factors and the summary of prospecting marks,the Ⅰ-Ⅳ prospecting direction of alteration mineralized zone is evaluated,providing the basis for prospecting engineering arrangement.