Based on an analysis of the geological setting of Langshan area and Aguimiao area, the authors studied the process of geological structural evolution and mineralization. Aguimiao area has experienced a long geological structural evolution and development process, which includes the following stages: 1) the basement rock formation was formed in Neoarchean; 2) the crystalline basement was formed, deformed and metamorphosed in Upper Archean and Lower Proterozoic; 3) the passive continental margin aulacogen was broken up, received sediments and experienced mineralization in Proterozoic; 4) the passive continental margin aulacogen was closed in late Neo-Proterozoic; and 5) the development of compression and orogeny with considerable intrusion of acid-intermediate magma and the deformation occurred from Hercynian to Mesozoic.