Abstract:The sampling method in different forest land where the pests emerged in different times in the same Environment was used on establishing life tables of Saperda populnea L. Seven single generatien life tables were established in one year. This way spent shorter time as compared with the normal method accumulating life tables. The survivalship curves are the same, key factors are the same and the order of lethal ratio of each factor is nearly the same as compared with five tables at the same forest land in five years. This shows that the method accumulating life tables is feasible in practice.