A series of single Eu³⁺ activated NaY(MoO₄)_2were synthesized by a sol id state reaction at 550℃ for 4h,and their luminescent properties are investigated.Phase form ation is determined by X-ray diffraction (XRD) in a Bruker AXS D8advanced automatic diffractometer (Bruker Co., German) with Ni-filtered Cu Kα1radiation (λ=0.154nm ).Steady time resolved luminescence spectra,and excitation and emission spectra are detected by a fluorescence spec trophotometer (Hitachi F-4600).Commission International de I′Eclairage (CIE) chromaticity c oordinates of samples are measured by a PMS-80spectra analysis system.The X-ray powder dif fraction results show that there has no crystalline phase other than NaY(MoO₄)₂.NaY(MoO₄) ₂:Eu³⁺ can create red emission under the 393nm excitation,and the prominent luminescen ce in red (616nm) is due to the ⁵D₀-⁷F₂ transition of Eu 3+ .The emission intensities of Eu³⁺ in NaY(MoO₄)_2enhance with the increase of the impurity concentration,there is no concent ration quenching effect,and the phenomena are proved by the decay curves of Eu³⁺.Moreover,when tun ing the Eu³⁺ doping content,the CIE chromaticity coordinates of NaY(MoO₄)₂:Eu³⁺ are measur ed,and the corresponding results present that they locate in the red region.The results ind icate that the phosphors may have the potential applications in white light emitting diodes.