The title nano-TiO₂/reduced graphene oxide（rGO）composites was synthesizedby using a simple and efficient technology. The composites were characterized by infraredspectroscopy（FT-IR），scanning electron microscopy（SEM）and X-ray diffraction（XRD）. The results showed that nano-TiO₂ was finely loaded on the rGO sheets. The prepared TiO₂/rGOcomposite materials were added into waterborne polyurethane coatings. The coatings filmswere prepared and their photocatalytic degradation abilities were determined. The resultsshowed that the nano-TiO₂/rGO filled composite polyurethane coatings films provided highphotocatalytic degradation ability. The anti-bacterial abilities of the coatings films weredetermined according to the HG/T 3950—2007 standard. The ability of anti-bacteria met the level I in national standard，which could effectively replace the organic anti-bacterial agents.The environmentally friendly composite coatings was conformed to the requirements of the chemical industry standards in terms of physical properties and application properties.