Abstract: Through systematic collation of specimens, we confirmed four species of the genus Leucodon in Xinjiang, three of which are new records to Xinjiang, including L. coreensis Cardot., L. pendulus Lindb., and L. sinensis Thér. In this paper, the morphological characteristics, habitat, and geographical distribution of these four species are described in detail, and micromorphological charts and line drawings are provided. This study expands the diversity and geographical distribution of Leucodon in Xinjiang and enriches the basic data of Leucodontaceae in China. According to its geographical distribution, the Qinling region maybe a distribution and biodiversity center of Leucodon in China.