Abstract: Under the background of the decrease of easy mining deposits， the increase of mining difficulty， the aggravation of ores dilution， and the increase of ores comminuting and beneficiation cost， crushed ores were realized pre-selecting and waste discarding， which increases the utilization rate of resources and the grade of grinded ores， decreases the amount of grinded ores and fine particle tailing production， improves economic benefits of enterprises and environmental conditions， and extends the service life of mines. In order to promote the development and application of the picking technology， the development and application study status of photometric picker， excitation light picker and nuclear radiation picker were mainly introduced， as well as the performance features of different equipments. In addition， the applicable scope of each picker was pointed out. Finally， precision， intelligence， large-scale and high-efficiency were pointed out to be the most important directions in the development of intelligent picking equipments.

Key words: Intelligent picking technology, Photometric picker, Excitation light picker, Nuclear radiation picker