Uranium adsorption resin

The present invention relates to the technical field of ion exchange, and more particularly relates to anion exchange resin having a think shell structure. Uranium adsorption resin is prepared by chloromethylation of gel-type polystyrene-divinylbenzene white balls and then amination reaction, the resin whole ball rate is not less than 97%, the volume exchange capacity (Cl type) is 1 .2-1.4 eq / L, the weight exchange capacity (Cl type) is 3.0-3.2 eq / Kg; the size requirements of the resin are as follows: the volume proportion of the resin less than 800 um is not more than 1%, the uniformity coefficient of the resin is not greater than 1.2, the median particle diameter of the resin is 900-1000 um, and the ratio of shell to diameter is 0.3 to 0.7. The think-shell-type strong base anion exchange resin can ensure a fast separation speed and a fast regeneration speed in the application process.