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Raw materials in this experiment are zinc oxide(ZnO), selenium powder(Se) and sodium borohydride (NaBH4). ZnO/ZnSe core/shell nanowires with different temperatures (50, 70, 90 °C) were fabricated by dip-coating method. And structure, morphology and photocatalytic properties of these samples will be studied in dental by transmission electron microscope(TEM), Raman spectroscopy (RAMAN), UV-Vis spectrophotometer (UV-Vis) and photocatalytic properties test. The results show that the reaction temperatures of samples are higher, ZnSe particles attached to the surface of ZnO are denser, coreshell structure of nanowires is more obvious, the degradaion rate of these samples is more rapid and the effect of degrading of ZnO/ZnSe core/shell nanowires is more significant in the Halogen lamp irradiation. However, 70°C is the optimum reaction temperarture to fabricate ZnO/ZnSe core/shell nanowires when convenience of fabrication process and environmental protection are taken into consideration. [ABSTRACT FROM AUTHOR]