Abstract: In order to control the damage by Ephestia elutella Hübner (E. elutella) to tobacco leaves and cigarettes,the effects of electron beam irradiation on the egg,larva,pupa and adult of E. elutella were investigated. The results showed that the life stages of E. elutella in the order of susceptibility to electron beam irradiation were egg> larva> pupa> adult. The radiation doses which could prevent egg,larva and pupa from developing to adults were 175,325 and 1000 Gy,respectively. In addition,all of the larvae,pupae and adults would die in a period of time after irradiation,and the mortality of larvae,pupae and adults positively correlated with the irradiation of dose. A 600 Gy irradiation caused adults not able to produce offspring and prevented the development of eggs and larvae. All the adults would die in 6 days after emergence from pupae which had been exposed to 600 Gy irradiation. Therefore,600 Gy irradiation could be considered as the lowest effective dose for tobacco moth control.