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The biosorption of Uranium(Ⅵ)by immobilized Trichodema aureoviride mycelium pellet were studied in the research.The mycelium pellet were obtained by absorbing Trichodema aureoviride conidiophores onto corncob,entrapping in calcium alginate gel,and further cultivating at 28℃ for 48h.The mycelium pellet were dried at-65℃ for 72h for biosorption experiments.The effects of pH,contact time,temperature and ionic strength on the biosorption of uranium onto the sphere from aqueous solutions were investigated in a batch system.Biosorption equilibrium data were agreeable with Langmuir isotherm model and the maximum biosorption capacity of the sphere for uranium was estimated to be 18.208mg/g at 30℃.The biosorption kinetics followed the pseudo-second-order model.The variations in enthalpy(22.57 kJ/mol),entropy(0.1003 kJ/mol K)and Gibbs free energy were calculated from the experimental data.SEM and EDS analysis indicated the strong adsorption capability for uranium.The adsorbed uranium on the sphere could be released with Na2CO3.The results showed that the immobilized Trichodema aureoviride mycelium pellet have great potential for removing and recovering uranium from aqueous solutions.