Abstract: The ore types and distribution of the Archean ferrosilicon formation in Fushun region is specifically related to the trans-Fushun Hunhe deep fault. Based on the characteristic of the ores in the ferrosilicon formation, the authors analyze the geochemistry of a few deposits, with the metallogenic background and process, to set up the ore-forming model of the Archean ferrosilicon formation in the region, i.e. the model of submarine volcanic exhalation/hot water-ore fluid submarine circulation-sedimentation-metamorphic recrystallization.