A new brown tree frog species, genus Rhacophorus, is described on the basis of seven adult male specimens collected from Cenwanglaoshan Nature Reserve, Guangxi, in southern China. This frog can be distinguished from all other Asian Rhacophorus Kuhl and van Hasselt, 1822 by the combination of: skin brown and smooth; Y-shaped cartilage visible dorsally on tips of fingers and toes; outer fingers one-third webbed; distinct dermal ridges present on forearms, above vent, and calcars present on heels; anterior and posterior surface of thighs tangerine in color without distinct dark or light spots; tympanum distinct and large, about 6.6% of SVL; dorsum brown with wide dark cross-shaped
mark.