Objective To understand the situation of Listeria monocytogenes(Lm) contamination level in the imported seafoods passed through Dandong Port. Method The 1?060 batches of seafood imported through Dandong Port in the period of 2005-2006 were inspected by mini-VIDAS rapid screening and BBL Crystal confirmation system. Results 11 batches were Lm positive, the positive rate was 1.04%. Serological agglutination test showed that 8 strains were 1/2a,2 strains were 4b and 1 strain was 4e.Conclusion Listeria monocytogenes contamination in the imported seafoods passed through Dandong is very serious,suggesting that related department should pay attention to this problem and strengthen the surveillance.