Abstract:  By the qualitative and quantitative method the contamination of aquatic products by Staphylococcus aureus (S.aureus) was studied.The results showed that the incidence of S.aureus in aquatic products was 6.5％and the population of S.arueus was 10cfu/g.20 strains S.aures isolated from the all samples were characterized by a series of physiological and biochemical fests.The results showed that the plasma coagulase test was greatly consistent with egg yolk clearing.However,the percentage of golden pigment production was rather low only 25％.

Key words: Stophylcoccus aureus Aquatic Product Contamination