In the context of rapid advancements in modern science and technology，intelligent textiles represent a novel material of significant utility，amalgamating traditional textile elements with cutting-edge technology. This paper aims to provide a comprehensive overview of the recent developments in functional smart fabrics，offering a systematic reference for future research. The discussion of this paper focuses on treatment methods for smart fabrics，including impregnation and layer self-assembly techniques. Furthermore，it examines the application scenarios and functionalities of smart fabric coating in various domains such as intelligent fire detection systems. Based on the recent research advancements，the study also outlines the trends in enhancing environmental sustainability and augmenting intelligence levels. Research of functional smart fabric coating not only enriches textile functionalities but also fosters advancements in environmental sustainability and intelligence augmentation.