Abstract: LiEuW₂O₈,a red phosphor for white LED,was synthesized by high-temperature solid state reaction.The effect of luminescence characteristics,structure,average particle size and morphology of the LiEuW₂O₈ phosphor is emphatically studied with the fluxes.When adding flux,the intensities of emission spectra of LiEuW₂O₈ become much stronger.The XRD spectra shows that the flux can help to crytallize the phosphor,and no other phases are formed except the tetragonal system.When adding H₃BO₃ with NH₄F and Na₂CO₃ as common flux,the relative brightness of sample is higher than add alone.The particle size and size distribution and the morphology of the phosphor can be improved with proper flux,which are suitable for the use in white LED device.