Eight specimens of Red-disked Small Treefrog (Theloderma rhododiscus) were collected from Mount Dayao in Guangxi Province, Mount Nankun in Guangdong Province, Mount Jiulian and Mount Sanbai in Jiangxi Province from 2010 to 2013, and it is new to Jiangxi Province. By using the morphology analyses (Table 1, Fig. 2) and constructing evolutionary tree of the Theloderma species based on 16S rRNA and 12S rRNA fragment (Table 2, Fig. 1), it is confirmed that the specimens we collected are Red-disked Small Treefrogs. Available data indicated that there are 10 distributions of the Red-disked Small Treefrog and its distribution area is extended from the original Jinxiu, Longsheng and Nanning County of Guangxi to northern Vietnam and southeast Yunnan in the south, and to Mt. Nanling and the middle Mt. Wuyi of Fujian in the east (Fig. 3).