Comprehensive analysis of geological characteristics of Niobium polymetallic deposit in northeast of Huishishan mountain shows that the deposits is controlled by both the strata and structure. The Shuangbaotang Formation is the source bed. The ore bodies are stratabound. NEE fault is the hydrothermal fluid passageway where ore is formed in the source bed. Genetically the deposit is sedimentary metamorphic deposit reworked by hydrothermal fluid.