Abstract: The silver films of nano-structured are prepared by RF magnetron sputtering on the polyethyleneterephthalate (PET) nonwoven fabric and polyester plain weave fabric,The effect of Ar gas pressure in vacuum on the morphology of the nano-structured silver films, light transmission and the conductivity of samples deposited with silver films is investigated.Results of experiments show that the surface roughness of silver films for substrate with PET nonwoven fabric is biggest, particle size is largest and particle formed on the surface of film is distinctest when pressure is 0.3Pa,but when pressure is 0.6Pa, the conductivity of silver film is optimum; the surface roughness of silver film with substrate for plain weave fabric is biggest, particle size is largest and particle formed on the surface of film is distinctest when pressure is 0.6Pa,but the conductivity of silver film is best when pressure is 0.3Pa; The samples deposited with silver films show better UV absorption, the change of Ar gas pressure has no obvious influence on the samples shielding UV radiation.