Abstract: The grade of nickel in the refractory nickel ore in Jinping is 0.634%, mainly existing in the form of pentlandite. In order to know the ore structure and formulate the rational beneficiation plan, the research on material composition and occurrence of nickel ores, as well as the analysis of the processing technology and crystal grain size for the main mineral of pentlandite and mineralogy factors about the recovery of nickel elements was carried out, ascertaining mineralogical characteristics of the ore. The study showed that the nickel has the characteristics of uneven dissemination size, dispersion, difficult dissociation and high content of nickel which cannot be recycled.