A detailed process inspection was conducted on the ore-dressing process of a large copper-molybdenum mine in Xizang.By utilizing process mineralogy studies,the reasons for losses were identified.Based on this,measures such as introducing powerful collectors,ore slurry dispersants,or conducting ore slurry open-circuit tests,enhancing the effective recovery of 2 particle size products of ＋0.100 mm and -0.010 mm,are proposed.It is expected to increase the copper metal recovery rate by 3-5 percentage points,providing guidance for optimizing the ore-dressing process indicators,and laying a foundation for further improving quality,controlling costs,and increasing efficiency in the copper-molybdenum mine.