Batch type experiments of U(VI) and Th(IV) sorption on the crushed granite were carried out by measuring the distribution coefficient (Kd). Kd values for U(VI) sorption of granite were 3.38~11.02 mL/g and Kd,avg = 7.07 mg/L, when [U(VI)]tot = 1O^(-6)M. The Kd values for U(VI) were increased to the range of 17.10~234.24 mL/g (Kd,avg = 22.24 mL/g) as the dissolved U(VI) concentration was decreased to 10^(-7)M. On the other hand, Kd values for Th(IV) were measured to be in the range of 1,114.64~1,831.39 mL/g (Kd,avg = 1,586.63 mL/g) at [Th(IV)]tot = 1O^(-6), while Kd values for Th(IV) were 902.48~2,079.29 mL/g (Kd,avg = 1,353.80 mL/g) at [Th(IV)]tot = 10^(-7)M.