Polymerase chain reactions (PCR) were performed to accomplish quick and accurate detection of Vibrio species. The primers prepared with 16S-23S rDNA intergenic spacer (IGS) region exhibited an excellent species-specificity for Vibrio sp and detected Vibrio sp more successfully than the conventional culture method. Multiplex PCR was also fruitful not only forthe identification of the 5 standard Vibrio sp simultaneously but also for the detection of Vibrio spin the samples collected from the natural environment.