New ionic polynorbornenes for the selective adsorption of Cr(VI), Cr(III) and Ni(II) ions are synthesized and characterized. The metal ions complexing capacity of obtained polynorbornene resins (1-3) is dependent on the structure of the cross-linking diamines. The highest capacities were found for resin 3. At pH = 1 Cr(VI) and Cr(III) were sorbed above 94% from an aqueous solution. The desorption of chromium ions from the loaded resins was also studied.