The UV shielding properties and photocatalytic properties of nanomaterials will vary due to the different surface binding energies of the materials themselves.Nano?zinc oxide (NPs?ZnO),nano?ceria (NPs?CeO2), NPs?ZnO/CeO2 and graphene oxide modified zinc oxide/ceria nanocomposites (NPs?ZnO/CeO2@GO) were prepared,and the prepared samples were characterized by XRD,FT?IR,SEM,and the UV shielding properties and photocatalytic properties were tested. The results show that the UV shielding ability: NPs?ZnO<NPs?CeO2<NPs?ZnO/CeO2<NPs?ZnO/CeO2@GO, the maximum degradation rate of methylene blue dye after 3 h treatment is:NPs?ZnO/CeO2@GO(0.92)>NPs?ZnO(0.89)>NPs?ZnO/CeO2(0.75))>NPs?CeO2(0.66).Moreover,the photocatalytic activity of NPs?ZnO/CeO2@GO is stronger than other photocatalysts participating in the experiments.