Cylindrical Activated Carbon Fiber cartridge filters were prepared to investigate their adsorption/desorption behavior of residual chlorine from 2 ppm aqueous solution. From breakthrough profiles, the amount of purified water was 31.5 ton with Activated Carbon Fiber cartridge filter(Activated Carbon Fiber: 100g) while only 8.4 ton with Activated Carbon Fiber/Activated Carbon cartridge filter(Activated Carbon Fiber: 50g, Activated Carbon: 50g) at the breakpoint when the breakpoint was fixed to 0.2 ppm(C/C_o=0.1) residual chlorine. The pressure drop through Activated Carbon Fiber and Activated Carbon Fiber/Activated Carbon cartridge filter were 0.2kg_f/㎠ and 2.3kg_f/㎠, respectively, when 120 ton aqueous solution was passing the cartridges at 10l/min flow rate. The desorption of chlorine from fully used cartridges was performed by reverse washing with hot water 90℃. The desorption efficiency of cartridge was determined by comparison the 2nd adsorption capacity of residual chlorine with the 1st adsorption capacity at breakpoint. The desorption efficiency of Activated Carbon Fiber cartridge was 70.5% while that of Activated Carbon Fiber/ Activated Carbon cartridge was 36.9%. The desorption efficiency of cartridge increased with the temperature of washing water and decreased with the amount of Activated Carbon charged in cartridge.