Abstract:The survival rate, adult longevity, fecundity and life parameters of invasive species of Frankliniella occidentalis and indigenous species of F.intonsa feeding on capsicum were studied at 19, 22, 25, 28 and 31℃ in laboratory to evaluate the effects of the temperature on two species of thrips. The results showed that the longevity of female and male adults of both F.occidentalis and F.intonsa decreased with the increase of temperature from 19℃ to 31℃. The intrinsic rates of natural increase (rm) increased with the increase of temperature, rm of F.occidentalis and F.intonsa were highest at 31℃, with 0.1347 and 0.1822 respectively. The population trend indexes (I) and net reproductive rate (R0) of both thrips had the curve relationship with temperatures. At the same temperature, the survival rate of F.occidentalis was higher than that of F.intonsa, however rm of F.occidentalis was lower than that of F.intonsa. The fecundity, I and rm of F.occidentalis were highest at 22℃, while F.intonsa were highest at 25℃. The results indicated that 22℃ was the most suitable temperature for F.occidentalis, while 25℃ for F.intonsa.