自修复涂层是提高材料及涂层服役寿命的重要手段，开发基于微胶囊技术的外援型自修复涂层，具有重要的研究意义与经济意义。基于近年来微胶囊技术及其在外援型自修复涂层中取得的进展，对微胶囊的类型、制备方法进行总结，特别介绍了微流控技术。综述了自修复涂层常用的树脂，阐述了涂层的自修复模式，尤其是近年来快速发展的双修复模式。最后介绍了微胶囊型自修复涂层的应用进展。微胶囊技术及自修复涂层应用广泛，发展持续且稳定，但仍存在着应用和理论性的问题。微胶囊的调控、功能剂的稳定贮存及可控释放将是未来的研究重点。而微流控技术的精确可控及高效特性，将为微胶囊及自修复涂层带来新的发展机遇。

Self-healing coating were an important means to improve the service life ofmaterials and coating. Developing external self-healing coating based on microencapsulationtechnology had important research and economic significance. Based on the recent progress ofmicroencapsulation technology and its application in external self-healing coating，the types and preparation methods of microcapsules were summarized in this paper，especially themicrofluidic technology was introduced. The resins commonly used in self-healing coatingwere reviewed，and the self-healing modes of the coating were described，especially the doublerepairing modes which had been developed rapidly in recent years. Finally，the application progress of microencapsulated self-healing coating was introduced. Microencapsulationtechnology and self-healing coating had been widely used and developed steadily，but there were still some problems in application and theory. The regulation of microcapsules，stable storage and controlled release of functional agents would be the focus of future research. Theprecise control and high efficiency of microfluidic technology would bring new development opportunities for microcapsules and self-healing coating.