Abstract:Bulbophyllum dresslerianum Z. D. Han & H. Wang (Orchidaceae), a new species from southern Yunnan, China, is described and illustrated. The new species belongs to section Tripudianthes Seidenf., sharing some vegetative and floral traits with B. dickasonii, B. kanburiense, B. rugosisepalum and B. tripudians, but differs on the basis of a suite of floral characters. Globular papillae decorate the lip epichile with the abaxial side and margins bearing sparse short glandular hairs. In addition, its lateral sepals are brownish-yellow and glabrous. A key to B. dresslerianum and its related species is provided. Currently, this species is only found in one population, its conservation status requires further assessment.