由于生物浮岛技术一方面可以有效改善水质环境，另一方面还可营造良好的视觉环境和增加收入，所以在水体生态修复中得到广泛应用。介绍了生物浮岛的起源和发展，对生物浮岛进行了分类，并回顾了生物浮岛技术在全球的研究状况，然后结合其多年的研发和推广应用经验来介绍生物浮岛的关键技术及其在水体生态修复中的作用，旨在说明生物浮岛在水体生态修复中的应用优势，并探讨其日后发展的主要方向。

Biological Floating Island (BFI) technology is widely used in water ecological restoration as it effectively improves the water environment on the one hand and builds good visual environment and has economic benefit on the other. The origin and development of BFI are introduced, and biological islands are classified. Researches on BFI all over the globe are also reviewed. Key technologies of BFI and their applications in water ecological restoration are presented based on years of experiences of BFI research and promotion in an illustration of the superiority of BFI technology applied in water ecological restoration. Last but not least, the main development direction is explored.