The origins of the Au-Sb deposit in Xinjiang have been the subject of many previous research studies. However, the process mineralogyProcess mineralogy characteristics of Au-Sb in different areas still have not been studied in detail. The objective of this study was to investigate two areas of Au-Sb deposit, in order to determine the distribution and occurrences of Au and Sb and the process mineralogyProcess mineralogy characteristics. Various techniques were used to detect the content of mineralsMineral, particle size and liberation degree of target mineralsMineral. The results indicated that Au content decreased from 8.16 g/t to 3.09 g/t and the particle size of Au became finer. The particle size of gold in the core region ranges from 0.003 to 0.100 mm, with 88.38% being coarser than 0.020 mm. In the edge region, the gold particle size is predominantly less than 0.010 mm, with particles smaller than 0.005 mm accounting for 78%. Gold and stibnite are closely related and difficult to separate in the core regions. In the grindingGrinding products, aside from liberated gold, the gold in the core region is primarily attached to and locked in stibnite, whereas the gold in the edge region is mainly attached to and locked in pyritePyrite, arsenopyrite, quartzQuartz and other mineralsMineral. The recoveryRecovery rate of Au-Sb should be improved by adjusting the mineralMineral processing flowsheet accordingly.