we developed a new silicate-based full-color phosphor Ba3Lu2(SiO4)3:Et2+ through solid state reaction.The host crystal structure was isostructural with Ca3Y2(SiO4)3 instead of garnet-type.The phosphor absorbed near-ultraviolet light from 250 to 400 nm,which was very suitable for a color converter of white LED that used UV-LED as the primary light source.The photoluminescence peak wavelength of Ba3Lu2(SiO4)3:Eu2+ was about 461 nm and a shoulder peak was around 522 nm,which resulted from the 5d-4f transition of the Eu2+.The optimum concentration of Eu2+ was 3.45 mol.％ of Ba2+ content in Ba3Lu2(SiO4)3 host.It is a promising candidate for application in white LED as a white light converter.