Abstract: The kinetics of Cu(Ⅱ) ion adsorption on a sulphonated brown coal (SBC) was investigated under various solution conditions,together with the treatment of electroplating copper wastewater with SBC.The results show that SBC has a better adsorption capacity,pH value is the main factor affecting the adsorption,and the static adsorption is the chief adsorption form.The initial rate of Cu(Ⅱ) ion adsorption on SBC is first-order with respect to its concentration in solution.The adsorption process exhibits Langmuir behaviour.This adsorption has been applied to the treatment of Cu(Ⅱ) ion in the electroplating copper wastewater with satisfactory results.