Abstract: Polyester/polyaniline composit fabric were metallized through electroless plating of copper uniformly with the ultrasonic. The effects of depositing conditions of polyaniline, the sensitization and the activation condition of the electroeless plating and ultrasonic on the square resistance surface resistivity, the weight gain rate of PANI and fastness were discussed. The corrosion resistance of polyester/polyaniline, the polyester/copper and the polyester/polyaniline/copper composite fabric were compared by dipping and anodic polarization.The surface properties of the different samples were characterized by scanning electron microscope (SEM). It was indicated that the intermediate polyaniline layers can reduce square resistance of the metallized fabric, at the same time enhanced bond properties between the metal and fabric and increase the corrosion resistance of conductive composite fabric. Also, the ultrasonic can promote copper depositing on the surface of composite fabric uniformly.