Abstract: The relationship between regeneration characteristics and arenaceous adaptability of Hedysarum fruticosum var. lignosum was analysed. The results showed that there were two regenerating mechanisms for H. fruticosum var. lignosum: natural seed regeneration and natural regeneration by rhizomes,the former of which is less successful because the seeds are difficult to spread and there are a lot of factors affecting seed germination; and the latter is the main way of regeneration. Three-year-old seedlings begin to reproduce by rhizomes, which is of significant for the plant to overcome sand-burying and to guarantee its branch-shooting and existence, and which is undoubtedly one of biological properties of adaptability to mobility and aridity of sand dunes.