The new developments of hydrometallurgical technology are systematically summarized.The new technologies and new processes about leaching(pressurized leaching,active leaching,bacterial leaching,in-situ leaching),solvent extraction,ion exchange,electrolysis and membrane separation are expounded,respectively.The recent development status for preparating powder materials by wet method are especially introduced.The new direction for research and application of hydrometallurgy is also presented.