The reproductive potential of Eriborus argenteopilosus Cameron on Helicoverpa armigera Hubner under laboratory conditions was calculated using life table analysis. Eriborus argenteopilosus had a net reproductive rate of 36.2 and completed its generation in 21.4 days. The egg and larvae developed within 10.6 days and the pupa in 8.3 days. The intrinsic rate of increase and finite rate of increase in numbers were 0.17 and 1.18 females per female per day, respectively. With the net reproductive rate, the population of the wasp can multiply as much as 3.2 times every week. none