[Objective]The variations in food-borne pathogenic microbial growth kinetic parameters in different cultivation matrix is an event with important implications for food safety research.Aiming at the evaluation of the growth variability among V.parahaemolyticus as affected culture in APW (3% NaCl,p H 8.0) at 30℃ and 37℃.[Methods]Maximum specific growth rate (μmax) values corresponding to each strain and growth condition were estimated by means of absorbance detection times of serially decimally diluted cultures using the automated turbidimetric system Bioscreen C.