Abstract: Some important information for ore dressing was researched in mineralogy, such as mineral constitute, particle size, content, embed state with gangue, liberation degree of purposed mineral.But mineralogy was not took into account in our country. In this paper, application of mineralogy inland was summarized and the reason was analysed. At the same time, the importance and necessity was proposed for flow investigation by mineralogy to fit the energy conservation and economy with high speed development. At last, development tendency of mineralogy was pointed out in our country.