Abstract: In order to cope with the current situation of decreasing high-grade mineral resources，aim⁃ ing at the problem of increasing crushing and grinding costs and beneficiation costs caused by the continuous development and utilization of low-grade mineral resources，the separation principle，structural characteris⁃ tics，process applicability and technical requirements of XRT intelligent pre-selection equipment are intro⁃ duced，and its process superiority and equipment characteristics are analyzed. The application status of XRT intelligent pre-selection technology in different minerals in China is summarized，and development suggestions are put forward for the development and application of this technology.The research results show that XRT photoelectric intelligent pre-selection，as a new pre-selection and discarding technology，has a good application effect in the pre-selection of non-ferrous metals such as tungsten，tin，antimonium and rare and precious metals. In the future，the application of XRT intelligent pre-selection technology for pre�selection and discarding of low-grade mineral resources before grinding will become an inevitable trend.

Key words: XRT intelligent pre-selection technology, pre-selection throwing tailings, intelligent con? trol, comprehensive utilization, intelligent mine