[en] The migration behavior of "2"3"9Pu was investigated by static adsorption of "2"3"9Pu on the sandstones. The mineral compositions and chemical components of the sandstones were determined by the powder XRD. The adsorption equilibrium time of "2"3"9Pu was firstly achieved at the room temperature 25 ± 1℃ and the liquid/solid rate of 20 ml/g. The subsequent tests were performed to verify the changes of K_d with different liquid/solid rate of 5 ml/g, 10 ml/g, 20 ml/g, 30 ml/g, 40 ml/g, 50 ml/g, 65 ml/g, 80 ml/g, and different pH values of 0.5, 1, 2, 3, 8, 10, 11, 12, 13. And the adsorption isotherms of "2"3"9Pu at the room temperature 25 ± 1℃ and the liquid/solid rate of 20 ml/g were studied. The space-time distribution of "2"3"9Pu in the selected site can be predicted if combining the static adsorption data and the dynamic data of soils columns which will be made in the coming tests. (authors)