Xiaoqinling gold field is located on the gold,molybdenum,lead,and zinc polymetallic mineralization belt on the southern margin of the North China Craton.The ore deposits in this field are superimposed and transformed hydrothermal deposits controlled by shear zones.To study the ore-control regularity of shear zones on ore bodies,a systematic investigation and research on the structural characteristics and formation-evolution processes were conducted based on the ore-controlling structures of typical deposits in the Xiaoqinling gold field.It was found that the field has experienced 4 structural deformation stages: ductile shear,brittle-ductile shear,ductile-brittle shear,and brittle shear.The intensity of gold mineralization is positively correlated with the scale and structural density of shear zones,and the variation of ore-bearing shear zone occurrence plays a decisive role in the distribution of ore sections and ore bodies.