Abstract: The genus, Ainsliaea DC. from China is revised in this paper. Three species, A. nana Y. C. Tseng, A. pingbianensis Y. G. Tseng and A. trinervis Y. C. Tseng, are newly described; two species, A. chapaensis Merr. and A. angustifolia Hook. f. et Thoms. ex C. B. Clarke are new records for China and two new combinations, A. apteroides (Chang) Y. C. Tseng and A. macrocephala (Mattf.) Y. C. Tseng, are made. In addition, one species, A. hypoleuca Diels ex Limpr. and four varieties, A. bonatii Beauverd var. arachnoidea Beauverd, A. pteropoda DC. var. leiophylla Franch., A. elegans Hemsl. var. tomentosa Mattf. and A. glabra Hemsl. var. tenuiculis (Mattf.)Chang, are reduced to synonyms.

Key words: Ainsliaea, A. nana, A. pingbianensis, A. trinervis, A. chapaensis, A. angustifolia.