The Sr3SiO5: Ce3+/Dy3+ phosphors were prepared via a citrate assisted sol-gel method. The prepared samples were characterized by X-ray diffraction pattern, scanning electron microscopy, Fourier transform infrared spectroscopy and fluorescence spectroscopy. When excited with near-ultraviolet (NUV) (360nm) irradiation, the photoluminescence emission spectra showed a broad band blue emission of Ce3+ ions combined with the sharp emission peaks of Dy3+ ions. Energy transfer occurred between the Ce3+ and Dy3+ ions and it increased with the increase of Dy3+ ion concentration. The luminescence properties of the prepared phosphor materials could be adjusted by changing the concentration ratio of the Ce3+ and Dy3+ ions. The prepared phosphor materials also exhibited good thermal stability.