Abstract: Based on study of geological setting,ore-controlling tectonic,the paper probes into the geological characteristics and metallogenic mechanism of Xiajiadian gold deposit.The deposit occurs in the carbargillite-siliceous rock and ferroan carbonate rock of the Sinian-Cambrian system on the border of the Douling doming paleostructure in South Qinling.The tectonic system is become ore-control leading factor,this is manifold type and shape,varied nature,pulsution of many time of the tectonic activity.By study of relationship of structural analysis and mineralization-alteration has been set up remould met allogenic system of strat a control-shear and tension struct ure-hydr othermal convection.Xiajiadian gold deposit of like Carlin type is subjected to control of manifold control and reform of geological condition.