Mongolia is located at the center of Central Asian orogenic belt, which is built at the result of repeatedly occurred accretion, subduction and collision. Therefore, remnants of ancient island arc terrane preserved in the south Mongolia. As analogue with modern island and continental arc setting, ancient arc systems hosts of porphyry type copper-gold and copper-molybdenum deposits in the south Mongolia. Currently, there are more than 160 porphyry type copper deposits and occurrences, from which almost half is distributed in the south Mongolia. Therefore, study of south Mongolian porphyry system is vital importance on widening for mineral exploration activity, as well as better understanding of ancient geodynamic setting.