In order to master the species and distribution of exotic invasive plants of agricultural ecosystems in Guangdong Province， exotic invasive plants of agricultural ecosystems were surveyed by taking 205 samples with “pointsurvey” and “route investigation” in 21cities in Guangdong Province. A total of 90 species belonging to 28 families were identified, 27 species (30.[KG-*8]0%) belonging to the family Compositae. 71 species (78.[KG-*8]9%) were herbs. 22 species were considered high threat to local biodiversity, 15 species were classified as medium risk, and 53 species as low risk. Among the 90 species of exotic invasive plants, 71 species originated from America. Forty of invasive species were extensively distributed (present in more than 50% cities of Guangdong Province) , accounting for 44.[KG-*8]44% of the total invavise species, and only 7 species (7.[KG-*8]78%) were present in all the cities of Guangdong Province. The species of exotic invasive plants was abundant in agricultural ecosystems of Guangdong Province. The species distributed extensively and made serious damage to agricultural ecosystems， which should be paid attention to.