Abstract: The production process of the spun-bonded PP fabric treated with nanometer silver antibacterial agent was described.The antibacterial,fastness to washing,mechanical and photo-aging properties of the treated fabric were tested,and the results were compared with those of the conventional spun-bonded PP fabric.It indicated that nanometer silver antibacterial agent is dispersed evenly in the PP macromolecule,and the treated fabric possesses good antibacterial effect with little influence on the shade and mechanical properties.