In this study, the multifunctional polyester fabrics treated with nanosilver fiber to be processed. The different aspect ratio of nanosilver fibers and water-based PU resin were uniformly blended into solution. The effect concentration of nanosilver pick up ratio of fabrics on antibacterial deodorizing and static dissipation were researched. The surfacial phenomena of treated fabrics were observed by scanning electron microscope. From experimental results found that the smaller aspect ratio was the better antibacterial ability, but the lower conductive properties. So that will decrease the antistatic efficiency. The surfacial electric resistance of finished fabric decreased with the increasing of concentration of nanosilver solution, that mean the antistatic function of fabrics were improved. The electric resistance of samples after washing were decreased. That still maintain the better ability of static dissipation for the treated fabrics in many washing tests.