disclosed are an antibacterial synthetic fiber , and a method for manufacturing the same , characterized in that one or more antibacterial plant extracts are mixed with a fiber - formable polymer and the mixture is melt spun at 200 ˜ 300 ° c . the antibacterial synthetic fiber exhibits excellent and persistent antibacterial activity . in addition , the antibacterial synthetic fiber is superior in physical property to conventional antibacterial fibers and is suitable for use as a material for clothes .