Abstract: Simultaneously exists in view of the Chinese and Vietnamese frontier some nickel oxide ore has the degree of crystallinity difference or the noncrystal mineral,the crystal granularity thin mineral,the chemical composition changeable mineral,There mineral composition in ore is unable the accurate quota using the conventional method.The article proposed the use dressing technology classification,after these mineral grouping,appraises,chemistry many analyses,X beam diffraction analysis,through the mirror under methods and so on electron probe micro area analysis carries on the mineral quota.The practice proved that,this method mineral quota result is accurate,feasibility.