Event geology in metallogeny refers to anomalous geological events in the evolutional processes of metallogenic history that stimulates normal ore-forming processes to promote the economic super-accumulation of metals and exceptional super-large deposits to formed. The key contents of this paper are to discuss the for discontinuity in the crust-mantle structure in trans-region,formation of mantle-rooted structure and events of tectonosphere thermal erosion with metallogeny,as well as living examples on the metallogenic areas of nonferrous metals in the western U.S.A. and mineral assemblage area of tungsten-tin poly-metallic metals in Nanling,China.