Activated carbons were successfully prepared from coffee waste by chemical activation with Phosphoric acid. Coffee waste was roasted at 300∼400℃. Carbonization was carried out at 650℃, 1hr. Chemical activation was carried out by using phosphoric acid as an activation agent at 700℃, 2hr. The concentration of Phosphoric acid was in the range of 30%∼50%. N₂-BET surface area of activated coffee char prepared by chemical activation was measured as about 975∼1154m²/g. Adsorption concentration of copper(Ⅱ) by coffee activated carbon was found in the range of 340ppm∼238ppm. Structureal change of pore surface was observed by Scanning Electron Microscopy(SEM)