Abstract: In order to determine the effects of cold storage on maternal and progeny fitness of Ephestia elutella (Hübner) (Lepidoptera: Pyralidae), the parental reproductive fitness of E. elutella 5th instar larvae and the developmental time, survival rate, fecundity, and population parameters of their offsprings after cold storage at 5 ℃ for 160 days were studied based on the age-stage, two-sex life table theory. The results showed that the pupal period of F₀ generation of E. elutella was significantly longer than that of the control after 160 d of cold storage, whereas the longevity of male and female adults, mean fecundity and oviposition days were significantly lower than the control. However, in F₁ generation, no significant differences were observed for different parameters except average fecundity of E. elutella. The average fecundity of E. elutella (148.29 eggs) stored at low temperature was significantly higher than the control (113.93 eggs). In conclusion, cold storage significantly reduced the fitness of parental generation of E. elutella, but had no significant effect on the fitness of progenies.