Abstract: By using yttrium oxide and europium oxide as starting materials，europium-doped yttrium phosphate-vanadate phosphors were prepared by the co-precipitation method with ammonium metavanadate and ammonium monoacid phosphate as precipitating agent. The sample was investigated by scanning electron microscope (SEM)，X-ray diffraction (XRD)，excitation spectra and emission spectra and brightness test. The SEM images showed that the particles of the sample were more uniform and smaller than those made by the solid-state method. And the sample also had higher emission intensity. The chromaticity coordinate and color rendering index could be adjusted via changing V/P in the sample.