This　study　investigated　the　adsorption　of　Ni(II)　from　an　aqueous　solutions　by　a　novel　sulfonic　starch　adsorbent,　which　was　prepared　by　graft　copolymerization　of　crosslinked　corn　starch　with　acrylamide　followed　by　sulfomethylation　of　the　graft　copolymer　with　formaldehyde　and　sodium　bisulfate.　Static　experiments　were　conducted　as　function　of　pH,　initial　amino　acid　concentration,　adsorption　time　and　temperature.　The　equilibrium　adsorption　data　of　the　Ni(II)　ion　on　adsorbent　were　analyzed　by　Langmuir　and　Freundlich　models.　Thermodynamics　studies　indicated　that　the　adsorption　process　was　exothermal　and　was　controlled　by　chemical　adsorption.