Whether the temperature has an influence on the amplitude dependence of the rubber vibration isolator is a problem of interst. It was studied using a vibration isolator made of a sort of rubber containing carbonblack at a proportion of 40 parts per 100 of natural rubber under the condition of temperature range of 0°C∼75°C and amplitude range of 0.3∼3% at constant frequency of 1000 c.p.m. As a result, it was found that the dependence of dynamical modulus and dynamical internal friction on amplitude is not affected by the change of temperature, and this can be explained by introducing the idea of static hysteresis as independent of temperature. The following three items are also discussed, 1. The relation between the results of vibration tests and the creep test, 2. The temperature dependence of vibration characteristics of the above material, 3. The amplitude dependence of vibration characteristics of Neoplene and of Hyear-OR-25.