Abstract: The mineralization age of the Donggou porphyry molybdenum deposit is (116.5±1.7)Ma-(115.5±1.7)Ma, the Mesoproterozoic Xiong'er Group andesite majorly hosts Cretaceous molybdenum ores, and the Donggou granite porphyry is related Mo mineralization. Located in 10km southweast of the Donggou porphyry, the Taishanmiao batholiths shares the similar petrology and geochemical features with the porphyry, which indicates that the porphyry probably is the apophyse or product of the late crystallization of the batholiths. There are three mineralization stages took place in the Donggou porphyry deposit:the early mineralization stage, main mineralization stage, and late mineralization stage. Two process consist of the main mineralization stage and the apatite-bearing vein separates them.