Natural enemies are very important in integratment pest control programs. In IPM used of safe insecticides are necessary. In these programs, the effects of insecticides (lethal and sub lethal) on the biological parameters of natural enemies should be investigated. In this research, the sub lethal effects of thiacloprid, azadirachtin, and red pepper extract were investigated on life-table parameters of Habrobracon hebetor Say (Hym.,: Braconidae). The sub-lethal dose(LC30) of this treatments as contact method were determined 0.0063, 0.652, and 13.91 mg/L on adult H. hebetor and 1.08, 5.35, and 0.213 mg/L on larvae of Ephestia kuehniella Zeller (Lep.: Pyralidae) as toxicant bait of H. hebetor. The sub-lethal dose of these insecticides have negatively affected on the age specific fecundity, adult longevity parameters such as finite rate of increase, net reproductive rate, generation time and gross reproductive rate, in contact and digestive methods. The parameter of intrinsic rate of increase population of H. hebetor, has decreased in total treatment in compared of control. The intrinsic rate of increase of wasps either treated with thiacloprid, azadirachtin and red Pepper extract and control (water) in the contact method was 0.240, 0.255, 0.0241 , 0.261 and in digestive method were: 0.199, 0.227, 0.215 and 0.0260 (female / female / day), respectively. Results showed that the net reproduction rate (R0) in contact method was 85.08, 88.98, 103.21 and 152.41 and in digestive method was 39.45,60.03, 61.09 and 152.92 (female/ female/ generation) The azadirachtin and red pepper extract were categorized as harmless insecticides in bioassay test and sub-lethal effect of this treatments on life parameters showed that its suitability in IPM in crops.