Abstract: While compiling Araliaceae for the Flora of China, the author exhaustively examined all of the specimens deposited in the main herbaria of Chinese and foreign countries such as BM. K. E. P. W. G. A. MO. PE. KUN?etc. The author also found some names of the genus or species should be revised. This paper reports a new combination, a new rank (status), a new variety and twenty synonyms for the genera Pentapanacc Seem. and Eleutherococcus Maxim. such as: Pentapanax lon～gipes (Mirr.) Shang et C. F. Ji, Eleutherococcus leucorrhizus var. setchuenensis (Harms) Shang & J. Y. Huang, E. trifoliatus var. integerrimus Shang &. P. Lowry and several taxa that must be placed in synonymy were discussed and cited in this paper.