Abstract: TiO2 nanoparticles were first dispersed by using different dispering agents, and then was added to the solution of silver ammonia. The Ag-TiO2 composite coating deposited on PET fabric was fabricated by electroless plating. The Ag-TiO2-coated fabric was characterized by SEM, EDX, XRD and TG. The electromagnetic shielding performance, surface resistance, abrasion resistance, air permeability and degradation of methylene orange dye under UV irradiation were investigated. It was found that the incorporation of Ti2O2 nanoparticles had no effect on the structure of the Ag coating using PVA and Tween 80 dispersing agents. The crystal size increased when the add-ons of TiO2 nanoparticles was not too much. The plating rate increased with increasing the addition of TiO2 nanoparticles at first, then decreased and increased at last. As compared with the Ag-plated fabric, the onset decomposition temperature of the Ag-TiO2-plated fabric did not change when the weight increasing percentage were identical. The abrasion resistance was increased but the air permeability was decreased. The shielding effectiveness was improved when the addition of TiO2 nanoparticles was below 0.25 g/L. The capability of photocatalytic degradation of methylene orange dye under UV radiation was obtained.