Based on the analysis and summary of the occurrence strata and ore-controlling characteristics of the typical gold and antimony deposits and orebodies in the platform facies area of southwest Guizhou.It is shown that the regional gold and antimony deposits mainly occur in the structural alteration body(SBT),a regional tectonic alteration formed by regional tectonics and hydrothermal alteration between Longtan Formation,Maokou Formation and Emeishan basalt.Based on these findings,the paper chose Dachang Antimony Deposit,Ⅰa orebody of Shuiyindong Gold Deposit and Getang Gold Deposit that occur in SBT as the research subjects,analyzed the mineralography characteristics such as the mineral compositions,structure and tectonics,alteration types,mineralization phases and mineralization stage pision.The results show that there are similarities among mineral compositions,structure and tectonics,alteration types and mineralization stage pision of different ore types and districts.The probable cause for the similarities in different ore types and districts was analyzed,summarized and discussed.The regional prospecting marks for gold and antimony were systematically summarized.At the same time,the data of tectonic formation age and typical deposits metallogenic chronology in southwest Guizhou were collected from previous research.The metallogenic system of gold and antimony deposits in the platform facies area of southwest Guizhou was discussed.The metallogenic theory for carlin type gold deposits was enriched and completed,providing support for setting theories for regional metallogenic mode and prospecting.