Angelica dabashanensis C.Y. Liao & X.J. He, a new species of Apiaceae subfamily Apioideae from the Daba (Ta-pa) Mountains in the Shaanxi Province of southwest China, is described and illustrated. The most important diagnostic character of the new species is the short-rectangular mericarp with thick lateral wings. The distinguishing characters of the new species, with a comparison to two morphologically similar species, A. polymorpha and A. tianmuensis, are presented. The sequence data from the nuclear ribosomal DNA internal transcribed spacer indicate that the new species is most closely related to A. tianmuensis.