A homogeneous precipitation process based on urea hydrolysis reaction was exploited to synthesize BaMgAl10O17:Eu2+phosphor.The process parameters,such as the dosage of urea,the calcination temperatures and the concentration of Eu2+,were refined in light of the characterization of the products.The experimental results revealed that pure and well-crystallized BaMgAl10O17:Eu2+phosphor could be obtained at 1250℃,a much lower temperature than that for traditional solid-state reaction.The as-prepared phosphor particles were small in grain size,regular in morphology,and uniform in size distribution.Because of the high homogeneity of the process,the as-prepared phosphor exhibited stronger emission intensity and higher thermal stability than the sample prepared by solid-state reaction at 1600℃. A homogeneous precipitation process based on urea hydrolysis reaction was exploited to synthesize BaMgAl10O17: Eu2 + phosphor. The process parameters, such as the dosage of urea, the calcination temperatures and the concentration of Eu2 +, were refined in light of the characterization of the products. The experimental results revealed that pure and well-crystallized BaMgAl10O17: Eu2 + phosphor could be obtained at 1250 ° C, a much lower temperature than that for traditional solid-state reaction. As-prepared phosphor particles were small in grain size, regular in morphology , and uniform in size distribution.Because of the high homogeneity of the process, the as-prepared phosphorometer stronger emission intensity and higher thermal stability than the sample prepared by solid-state reaction at 1600 ° C.