A new series of perfluoroalkyl-containing quaternaryammonium compounds were prepared and examined for their antibacterial activities. The perfluoroalkyl-containing quaternaryammoniumsalts mainly exhibited excellent antibacterial activity for the Gram-positive strain such as Staphylococcus aureus, the MIC (minimal inhibitory concentration) values was between 2.5 and 10 μg/mL and the MBC (minimal