[Objectives] To determine the effects of temperature on the development, survival and reproduction of Semiaphis heraclei (Takahashi). [Methods] The developmental duration, survival rate, and fecundity, of S. heraclei were measured and compared at five different temperatures (19, 22, 25, 28 and 31℃). [Results] The developmental duration of 1st to 4th instar nymphs, and of one complete generation of S. heraclei, was significantly shortened by higher temperatures within the range of 19~31℃. The periods required to reach maturity at 19, 22, 25, 28 and 31℃, were 22.17, 17.13, 12.57, 10.03 and 7.83 days, respectively. According to the rule of effective accumulative temperature, the developmental threshold temperatures of 1st to 4th instar nymphs, and of one complete generation, at each of the five temperatures tested were 14.15, 13.87, 13.64, 15.06 and 12.92℃, and 29.98, 29.30, 28.54, 24.00 and 144.21 degree days, respectively. The developmental durations of all stages of S. heraclei were predicted. At the five temperatures tested, the survival rates of 1st to 4th instar nymphs and of one complete generation were characterized by small wave motion with changing temperature. The overall survival rates of S. heraclei at 19, 22, 25, 28 and 31℃ were 40.0%, 52.5%, 62.5%, 60.0% and 47.5%, respectively. At 25℃, survival rates were relatively high, those for 1st to 4th instar nymphs and of one complete generation were 82.5%, 81.8%, 92.6%, 100% and 62.5%, respectively. Survival rates at the same temperature differed between developmental stages. The longevity of S. heraclei from birth to death decreased with temperature. At 19℃, the longevity of S. heraclei was 33.30 days, however, at 31℃, longevity was 15.40 days. The duration of oviposition also decreased with temperature. At 19℃, oviposition duration was 11.13 days but at 31℃ oviposition duration was 7.57 days. Fecundity at 19, 22, 25, 28 and 31℃, was 26.33, 27.93, 32.53, 27.13 and 17.93 per female, respectively. [Conclusion] Temperature is an important factor that affects the growth, development, survival and reproduction of S. heraclei. Developmental duration was shortest, and survival rate and total fecundity highest, at 25℃. We conclude that 25℃ is the optimal temperature for the development, survival and reproduction of S. heraclei.