Abstract: An environmentally functional active carbon and its method of manufacturing is provided. The active carbon has improved adsorption capability against disease-source bacteria and microbes with prominent anti-bacterial and sterilizing effect as well as against organic and inorganic contaminants due to the process of electro-depositing Ag—I to the surface of active carbon and active carbon fiber. This invention creates functional active carbon having outstanding sterilizing effect for disease-source bacteria from known bacteria such as Gram positive bacteria including Staphylococcus, Bacillus subtillis and Gram negative bacteria including Escherichia coli, Pseudomonas Aeruginosa, Klebsiella Pneumonie, Candida Albicans causing albicans as yeast fungus, Trichophyton interdigital causing athlete's foot as a kind of mold.