Abstract: In order to control Batocera lineolata on polar, increasing law and frequency of B. lineolata egg, larva and adult (including pupa) population were studied by investigating oviposition incision, frass hole and emergence hole on the poplars in the region of Dongting Lake. The results showed that the increasing law of B. lineolata egg, larva, adult (including pupa) population was like an upward pyramid. The B. lineolata egg population was large, and the mortality was high in the egg stage, therefore the population increasing survival curve was concave type. The egg, larva and adult population number per tree had negative correlations with the corresponding tree numbers, indicating that with the increasing population number of Batocera lineolata, the number of damaged trees with the same population frequency decreased. B. lineolata egg, larva, adult (including pupa) all presented an aggregated distribution as the frequency of B. lineolata in different developmental stages were all in accordance with negative binomial distribution.