Abstract:To activate Epstein-barr virus in Raji cells in vitro the lowest activation concentrations of ether extracts fromRadix Achyranthis Eidentatae unprepared (Ⅰ) ,stir-baked with wine(Ⅱ) and stir-baked with salt(Ⅲ) required were0. 8 , 20 and 0. 16 μg/ml respectively. 5μl (equal to 250 mg herb weight)/ear of these extracts had inflammatory effecton mouse ear skin in 4 hours. Ethanol extract of Ⅰ at concentration 0. 04～125 mg/ml diti not increase the chromoso-mal aberration rates in CHL cells. The decoctions of Ⅰ, Ⅱ and Ⅲ given orally at 15 g/kg x 3d showed no effect on mi-cronucleus rates in mouse bone marrow. Ethanol extracts of Ⅰ, Ⅱ and Ⅲ at 10 g /kgx10d did not show any evidentantifertility action.