Abstract: The deposits in Xinlong Sb mining area are mainly controlled by structures,they are characterized as fractures and folds,fractures in the mining area are consisted by F1 oretransmitting fracture and the NNW—NW,NNE,NE,NWW trending secondary orecontaining fracture,the better antimony deposit is occurred in the normal wings of anticline and anticlinal core.In recent years,the resources reserves of the mining area is only almost 2 000 t,it is belongs to the resources crisis mine.Based on analyzing the mineral rock characteristics and the enrichment characteristics of Sb in strata in the mining area,it is show that Sb in the strata with high Sb background value is activated and extracted by magmatic hydrothermal and migrated to favorable structural space to form the antimony deposit.The analysis results of metallogenic conditions and orecontrolling factors in the mining area show that stratigraphic lithology,tectonics,alteration,geophysical and geochemical anomalies are the favorable prospecting indicators of the mining area,besides that,the prospecting potential of the edge and depth of the mining area is huge,it is necessary to conduct further prospecting and exploration work.

Key words: Sb deposit, Resources crisis mine, Metallogenic condition, Orecontrolling factor, Prospecting indicator, Deep prospecting