Chelating resin containing iminodiacetic acid functional groups has been synthesized by the reaction of amination and subsequent carboxymethylation of highly cross-linked acrolein copolymer. Potentiometric titration confirmed monofunctionality of synthesized chelating resin. pH-dependance of cupric ions sorption and regeneration ability of the resin have been showen. The opportunity to make use of synthesized chelating resin for fast sorption from cupric complex solution of low concentration has been demonstrated.