Abstract: Due to the lack of the process mineralogy of Dishui Copper Mine,the minerals resource have not been utilized very well before being developed.To improve this situation,process mineralogy research on representative samples was conducted.The results showed that：① There is a great variety of copper minerals in the ore.Oxidized copper minerals are the main form of copper,accounting for 83% of the total copper.Copper sulfide minerals and natural copper share the other 17%.Main copper bearing minerals includes malachite,zigueline,chrysocolla,tenorite,azurite,covellite,chalcocite,bornite,chalcopyrite,etc.；②The gangue minerals are mainly quartz (flint)，plagioclase feldspar，microcline,striped feldspar，biotite，calcite,and alteration minerals are chlorite,epidote，etc..③The main textures of ore are sandy texture,pelitic texture,angular texture，metasomatic dissolution structure,packet structure and shell structure.The main structures in the ore are layered structure,disseminated structure,banded structure,massive structure and network structure.④There is great difference among various copper minerals.Grain size has an extensive distribution from 0.001 mm to 1 mm,and some one is even up to 15 mm.The systemic process mineralogy research provide theoretical basis to determine the scientific and reasonable beneficiation process and parameters.

Key words: Dishui Copper Mine, Process mineralogy, Copper sulfide minerals, Oxidized copper minerals, Gangue mineral, Diseminated grain size, Structure