Weining north mountain area lies in the copper, gold and multi-metal metallogenetic belt ranged from Weining north mountain area to Guyuan area of Ningxia, which belongs to the metallogenetic belt of North Qilian, where the gold, copper and iron mineralization has a significant effect. The gold orebodies occur as bed-like or lense, and mainly controlled by the faulted zone. The research suggests that the deposit appeared as a polygenic formation cause, relating to comprehensive factors from sedimentation and hot fluids and tectonic effects. The formation of the deposit is controlled by lithology, stratum and geological structure.