Development and parasitization of Trichogramma dendrolimi infected by Wolbachia were observed at 16℃, 20℃, 24℃, 28℃ and 32℃ respectively. The results showed that the developmental duration of T. dendrolimi infected by Wolbachia was affected by temperature. The higher the temperature, the shorter the duration. The whole developmental duration was 23.2 d, 17.8 d, 13.2 d, 11.1 d, and 7.8 d at 16℃, 20℃, 24℃, 28℃ and 32℃, respectively. The thermal threshold, the effective accumulated temperature, the innate capacity of increase (r_m) and the net reproduction rate (R₀) of T. dendrolimi infected by Wolbachia were estimated as 7.40℃, 212.69 degree-day, 0.2448-0.4584 and 28.00-84.03, respectively. The results suggested that the optimal reproduction temperature of T. dendrolimi infected by Wolbachia was 24℃-28℃.