Ethanol extracts of nine Chinese traditional medicine plants were screened for antibacterial activity against twelve bacterial strains by the agar disc diffusion method.Four of them（Rabdosia serra

Angiopteris fokiensis

Polygonum cuspidatum

Salvia prionitis） showed promising activity against several organisms.The maximum of inhibition zone diameters were observed from extracts of Angiopteris fokiensis in the range of 10-28 mm.The inhibition zone of chloroform

ethyl acetate and butanol fractions from the ethanol extract of the four species were tested against five most sensitive strains.Then the minimum inhibitory concentration（MIC） and minimum bactericidal concentration（MBC） of the active fractions were determined with broth microdilution method.The value of MICs and MBCs ranges between 0.016 g/L and 0.500 g/L.