系统地评述了纤维复合材料界面层结构、性质及其对宏观性能影响的研究工作，针对不同体系中形成的界面层，总结了用不同表征手段考察其结构的工作；通过简要回顾界面应力传递机理并比较不同界面性质评价方法的意义，根据模型复合材料实验结果，讨论了界面性质对界面层结构的依赖性，提出了控制界面层形态和性质的原则和方法。 The research work on the structure and properties of the interfacial layer of fiber composites and their effects on the macroscopic properties are systematically reviewed. For the interfacial layers formed in different systems, the work of investigating their structures by different means of characterization is summarized. By briefly reviewing the interface stress transfer mechanism According to the experimental results of model composites, the dependence of interfacial properties on interfacial layer structure was discussed. The principles and methods for controlling interfacial layer morphology and properties were proposed.