Abstract:To investigate the degradation effect of radiation on Okadaic acid (OA), Cobalt 60 gamma ray (60Co-γ) was used to degrade OA in water and scallops. ELISA was used to study some influence on the degradation rate, such as irradiation dosage, the initial concentration of OA and dissolution system. The result showed the degradation rate increased with the the increase of irradiation dosage, and decreased with the increase of the initial concentration of OA. In addition, degradation rate is also related to dissolution system. The degradation rate from high-to-low is OA in water, OA in muscle, OA in intestine and OA in hepatopancreas. The study confirmed that the irradiation technique can be applied to remove OA in water, but it is difficult to remove OA in aquatic products, such as scallops. The result of the study provides reference for the OA removed