The Mediterranean Flour Moth (MFM), Ephestia kuehniella Zeller, is one of the major pests stored products. eggs and larvae are widely used to rear parasitoids and predators for biological control and also research into behavior, biochemistry and molecular biology. The effect of standard diet including a mixture of wheat flour (68%), wheat bran (29%) and 3% yeast and also the standard diets+ olive pulp (30%), were studied on life history traits and life table parameters of E. kuehniella by using the Two-sex, Age-stage life table theory. The experiment was conducted at complete darkness, 25± 1ºC and 65± 5% RH. olive pulp is selected in diet because of fat-soluble vitamins its cheap price. The results showe that the flour moth oviposition period significantly was increased by adding olive pulp (8.2± 0.43 day) compared to standard diet (6.07± 0.143 day). Also, significant differences in case of pupa developmental time between two treatments 9.61± 9.82 and 10.179± 8.67 days, respectively. There were no significant differences between the intrinsic rate of population increase (r), the finite population increase rate (λ), reproductive rate (R0), gross reproduction rate (GRR) and generation time (T) among the treatments. The intrinsic rate of increase (r) and finite rate of population increase (λ) for standard diet and diet containing olive pulp, were 0.109± 2.85, 9.99± 4.65 and 1.115± 3.17, 1.105± 5.13 day-1, respectively. The net reproductive rate (R0) and gross reproduction rate (GRR) were 174.75± 22.14, 117.36± 22.90 and 206.49± 25.98, 198.60± 37.05 offspring. The generation time (T) by feeding on standard diets and Olive pulp added diets were 47.33± 0.32 and 47.68± 0.76 days. The results the that the olive pulp have positive effects on biological and population characteristics as a supplementary diet for flour moth, E. kuehniella.