In this Work, a nikcel metal(Ni) electroplating on the activated carbon finer(Ni/ACFs) surfaces was carried by using nitrigen adsorption isotherms at 77 K,SEM, and X-ray diffraction (XRD) measuremrnts. HCI removal efficiency was confirmed by a gas-detecting tube technique. As a result, the niickel metal cotents on the ACF surface were increased with increasing the plating time.