Abstract: In order to implement the strategy of saving preferential, promote the saving and comprehensive utilization of phosphate rock resources, phosphate rock resources and resources conservation and current situation of comprehensive utilization in China are investigated. Through analysis of development and utilization chain of phosphate rock resources, 9 key technologies which need to be solved urgently on conservation and comprehensive utilization of phosphate rock resources in China are pointed out, research of index system for phosphorus ore industrial grade; research of evaluation system for conservation and comprehensive utilization of phosphate rock resources; phosphorus ore exploration, digital production design and management-control technology; mining technology and equipment with high efficiency and low consumption for the inclined, gently inclined and thin to medium thickness phosphorus deposits; high efficiency and low consumption flotation technology and equipment for mid-low grade collophanite; comprehensive recovery utilization technology for intergrowth and associated resources; fine phosphorous chemical technology using purified wet-process phosphoric acid as raw material; phosphogypsum comprehensive utilization and harmless treatment technology; phosphorus resource recovery and utilization technology.

Key words: Phosphorus resource, Conservation and comprehensive utilization, Cascade use of resources, Key technology