[Objective] To confirm medicinal species of Liliaceae and their geographic distribution in Guizhou.[Method] Open field survey,data collection and specimens identification were made.[Result] 143 species,11 varieties and 1 change type of the medical plants of Liliaceae in Guizhou have been found.Among them,there are 5 species are new records of the distribution,26 species are new medicinal resources,4 species are the medicinal plants peculiar of Liliaceae in Guizhou.[Conclusion] The species of the medical pla...