Abstract: In order to fully understand the process mineralogical properties of a copper mine in Jingtieshan mining area， and provide basic data for the development of reasonable separation technology. The chemical composition， mineral composition， mineral particle size characteristics and the distribution characteristics of main minerals of a copper ore in Jingtiesshan mining area were studied in detail through chemical analysis， X-ray diffraction， screening analysis and microscope examination. The results showed that the ore species of the copper deposit are complex， the gangue composition is more， the main mineral distribution relationship is complex， and the grain size of the dissemination is uneven. Chalcopyrite in the ore is mainly distributed in medium and fine grains， the particle size is not uniform， showing the characteristics of polarization. The best grinding conditions needs to be determined combined with the beneficiation test. This study has a certain guiding significance for the rational exploitation and utilization of copper ore in Jingtieshan mining area.

Key words: Jingtieshan copper mine, process mineralogy, occurrence formation, chalcopyrite, embedded feature