The total volatile base nitrogen(T-VBN) value,peroxide value(POV),aerobic plate count(APC) and sensory evaluation of Sciaenops ocellatus treated with electron-beam were measured.Then,the effect of electron-beam irradiation doses on the sterilization and preservation of S.ocellatus during ice storage were investigated.The results were as follows: electron-beam irradiation could effectively decrease the APC of S.ocellatus with the D10 val-ue(the dose required to inactivate 90% of initial colony) of 1.61 kGy,and 5.40 kGy of irradiation could effectively reduce the APC of S.ocellatus to less than 10 cfu/g.But the T-VBN value and POV of irradiated S.ocellatus in-creased on irradiation day.With the extension of storage time,the APC,T-VBN value and POV of the control group increased more quickly than those of the irradiated samples.Electron-beam irradiation was conducive to maintain the sensory qualities of S.ocellatus,except 6 kGy irradiation was only slightly red the meat of S.ocellatus.Above all,microorganisms in S.ocellatus could be controlled effectively by 4 kGy irradiation and its shelf-life during ice storage could extend to 18 days.