The purpose of the invention is to provide a mineral processing technology which can not only save energy and protect environment, but also increase mineral processing indexes as lead recovery rate, zinc recovery rate and the like. The invention is applied to mineral processes of multi-metallic sulphide ores. The invention is enabled to utilize resources high-efficiently, save energy, and protectenvironment. The invention comprises steps of grinding, lead selecting and zinc selecting, and the invention is enabled to select zinc for lead tailings after the lead tailings are concentrated.