Abstract:In this study, the species diversity and geographical distribution pattern of wild Impatiens in Guizhou Province were studied based on the establishment of a list and geographical distribution database of wild Impatiens in Guizhou Province. Through the literature and a field investigation, we analyzed the species composition, endemism, horizontal distribution, vertical distribution and similarity. Finally, the hotspots of Impatiens in Guizhou were determined by a complementary algorithm,This study is of great significance to the conservation and sustainable utilization of Impatiens plant resources in Guizhou Province. The results show that: (1) there are 60 species (including subspecies) of Impatiens in Guizhou Province. These plants are distributed among 69 countylevel administrative districts. There are 55 species endemic to China and 10 endemic to Guizhou, and the vertical distribution is the most abundant at altitudes of 1 000~1 500 m. (2) The calculation of the provincial similarity coefficient showed that Guizhou and Hunan had the highest similarity. Finally, 9 hot spots were selected, representing 86.67% of the Impatiens plants. (3) Guizhou Province has a warm and humid climate with typical karst landforms, which have abundant Impatiens plant and have high species diversity and regional specificity.