Pomatocalpa tonkinense (Gagnep.) Seidenf, a newly recorded species of Pomatocalpa from China is reported. The voucher specimens are kept in the Herbarium of Guangxi Institute of Botany (IBK). This species is easily distinguished from the other two species of Pomatocalpa previously recorded in China by its inflorescences sparsely numerous many flowers, sepals and petals with 2 purple stripes. In this paper, the description of the newly recorded species, plates and a key to Pomatocalpa taxa in China are provided.