[en] The concentrations of different components in uranium solute are discussed by using cluster analysis method, and it can be found that many components except CO₃^2- and HCO₃^- have intimately positive correlation, which demonstrates their concentrations change in similar way. The chemical equations occurred in In-situ uranium leaching are deduced according to the main components of minerals and testify that most major components have several sources. The reaction rates between different components are then compared quantitatively by using data of a static leaching experiment