In order to improve productive technology of traditional cured fish and study the species and characteristics of dominant lactic acid bacterial strains,25 bacterial strains are isolated from traditional cured fish using differential medium.According to results of physiological and biochemical experiments,properties of strains are examined.4 dominant strains are identified,which are Lb.casei subsp.casei,Lb.delbrueckii subsp.bulgaricus,Lb.farciminis and Lb.delbrueckii subsp.lactis.Acidogenicity and growth characteristics of the strains within 24 hours are also studied.