金属纳米粒子／介质复合薄膜因其优良的光电特性和超快响应而成为应用背景很强的光电功能薄膜．采用真空沉积的方法制得了ＡｇＢａＯ纳米薄膜，测试到其在室温条件下的红光和蓝紫光波段的光致荧光光谱，认为ＡｇＢａＯ纳米薄膜的荧光发射主要来自于Ａｇ纳米粒子的贡献．与该种材料的紫外可见光吸收谱相比较，分析了ＡｇＢａＯ纳米薄膜材料不同可见光波段的荧光产生机理． Due to its excellent optoelectronic properties and fast response, the metal nanoparticle / dielectric composite film has become a photoelectric functional film with strong application background. The AgBaO thin films were prepared by vacuum deposition. The fluorescence spectra of AgBaO thin films were measured at room temperature. The fluorescence emission of AgBaO thin films was mainly from the contribution of Ag nanoparticles . Compared with the UV-visible absorption spectrum of the material, the fluorescence mechanism of Ag-BaO nanostructured thin films in different visible light bands was analyzed.