Abstract: In this paper,super absorbent resin was synthesized using carboxymethyl potato starch to.The effect of synthesis condition and environment on the capacity that super absorbent resin remove heavy metal ions from aqueous solution were researched.It includes the mass of cross-linker（0.1mg-0.6mg）to synthesize this super absorbent resin,the percent of neutralization（20-80%）,the initial concentration of heavy metal ions（20-100mg/L） and pH（2-6） of solution.The results show that the removal capacity is stronger with the increase of cross-linker,but it first increases and after decreases with increasing of the percent of neutralization.The removal capacity increases with increasing of initial concentration.Super absorbent resin’s,to Cu²⁺,the biggest removal efficiency is 55.5%,to Zn²⁺ is 90.5%,to Cr（VI） is 88.3% at 100mg/L concentration.