Objective To understand the contamination levels of Listeria monocytogenes, Salmonella and Vibrio parahaemolyticus in the seafoods imported through Dandong Port. Method The results of inspection of import seafoods passed through Dandong Port in the period of 2003-2005 were reviewed. Results Among the 1?965 batches of import seafoods tested, 44 batches were disqualified(2.24%) for bacterial contamination, including 32 batches of Listeria monocytogenes positive(1.63%), 6 batches of Salmonella positive(0.31%) and 6 batches of Vibrio parahaemolyticus positive(0.31%). The disqualified import seafoods were mainly frozen octopus, frozen conch, frozen saxidomus purpuratus, live periwinkle and frozen periwinkle meat. Conclusion The contamination level of the three pathogens in the import seafoods passed through Dandong were very serious. The Listeria monocytogenes contamination was most serious. Frozen octopus and frozen conch were widely contaminated by the three pathogens.