Abstract: With the development of nuclear industry, radiation technology has been increasingly widely used in medical diagnosis and treatment, and radiation has become increasingly close to people’s lives. However, radiation is greatly harmful to the hematopoietic, immune, and nervous systems. As non-toxic and harmless radiation protection agents, natural products have great application prospects. In this paper, we review the recent progress made in understanding the radoiprotective effect of natural products such as polyphenols, polysaccharides, alkaloids and saponins, which will provide valuable information for studying the radiation protection of natural products.

Key words: natural products, radioprotective, polysaccharides, polyphenols, alkaloids, saponins