Abstract: The chemiluminescence immunoassay（CLIA） was used to detect the residues of Furazolidone,Chloramphenicol,Enrofloxacin and organic phosphorus in several edible shellfish（escallop Argopectens irradias,hard clam Meretrix meretrix,surf clam Mactra chinenesis,short necked clam Ruditapes philipinarum,burnt-end ark Anadara uropygimelana） in Dalian.The result showed that the drug residues were disproportionately detected in the test shellfish.But the extent of the drug residues was found within the standards of food hygiene,in line with food hygiene and safety standards.

Key words: shellfish, drug residue, chemiluminescence immunoassay