Abstract: In order to cope with the shortage of supply and demand of global lithium resources and the continuous rise of prices，the distribution and main forms of global lithium resources are introduced. The extraction methods and application fields of lithium ions are reviewed，including hydrometallurgy，dry metallurgy，ion exchange and adsorption. The technical principles，technical status，application advantag⁃ es and limitations are discussed respectively，and the advantages and disadvantages of various methods are systematically summarized and compared.At the same time，the development trend and direction of lithi⁃ um-ion extraction technology are prospected from four dimensions: the direction of technological innova⁃ tion，the application of new materials and new processes，the trend of sustainable development and green⁃ ing，and the drive of policy and market demand，which can provide theoretical support and practical refer⁃ ence for enhancing the development ability of lithium resources in China and reducing the cost and increas⁃ ing the efficiency of lithium extraction technology.

Key words: lithium ion extraction technology, hydrometallurgy, dry metallurgy, ion exchange, sus? tainable development