The　desulfurization　slag　produced　from　steel　smelting　plant　during　flue　gas　desulfurization　process　was　used　as　main　raw　materials　to　prepare　copper　(II)　(Cu2+)　adsorbent.　The　adsorption　effect　of　the　adsorbent　samples　for　Cu2+　ions　in　wastewater　containing　copper　(II)　was　discussed.　Three　adsorption　empirical　kinetics　equations　and　two　thermodynamics　equations　were　used　to　characterize　the　adsorption　process.　The　results　showed　that　the　optimum　pH　value　for　Cu2+　removal　is　8　to　9　and　absorption　time　is　1.5　h.　The　adsorption　kinetics　could　be　best　described　by　pseudo　second-order　kinetic　model,　whereas,　the　adsorption　isotherms　could　be　well　described　by　Freundlich　equation.　The　desulphurization　slag　adsorbent　to　Cu　(II)　adsorption　is　not　a　single-layer　adsorption,　and　exist　physical　and　chemical　adsorption　process.