Abstract: 56 species of alien invasive plants belonging to 24 families have been found in Xiangxi  of Hunan Province through preliminarily investigation.The most abundant family is Compositae including 19 species (32.14%).Among those species,35 species originate from America and others originate from Europe,Asia,Oceania and Africa.The invading paths include intentional (32 species),unconscious (20 species) and natural (2 species),50 species of Herbs account for 89.29% of the total species.Based on their geographical distribution，46 genera are classified into 9 areal-types,and most of them belong to the tropical distribution（22 generas，47.83 %）.Although harms of the alien invasive plants have not broken out,government must pay attention to it.Finally,some preventable strategies are suggested.

Key words: Invasive Plant, Alien Plant, Investigation, Xiangxi Region