This standard specifies a high-performance liquid chromatography method for the simultaneous determination of the content of 18 rare ginseng saponins in ginseng, American ginseng and their products. This standard applies to ginseng rare saponins F2, 20(S)-Rg3, 20(R)-Rg3, Rk1, Rg5, 20(S)-Rh2, 20(R)-Rh2, Rk2, Content determination of Rh3, 20(S)-Rg2, 20(R)-Rg2, Rg4, Rg6, 20(S)-Rh1, 20(R)-Rh1, Rh4, Rk3 and CK.