In the present invention, provided are an aflatoxin production inhibitor, which includes a respiration inhibitor, and a method for preventing aflatoxin contamination by using the aflatoxin production inhibitor wherein the aflatoxin is well known for having the strongest carcinogenic substance or acute toxicity among natural substances. The respiration inhibitor has an outstanding activity of inhibiting the production of aflatoxin. Therefore, the aflatoxin production inhibitor includes at least the respiration inhibitor and other components if necessary wherein the aflatoxin production inhibitor has a property of inhibiting the production of aflatoxin.COPYRIGHT KIPO 2015본 발명은 호흡 저해제를 포함하는 아플라톡신 생산 저해제, 상기 아플라톡신 생산 저해제를 사용하는 아플라톡신 오염 방제 방법에 관한 것이다.