A more accurate life prediction for gas turbine blade takes into account the material behaviour under the Low Cycle Fatigue cycles normally encountered in turbine operation. In this study, low cycle fatigue tests are performed as the variables of total strain range and temperatures. The relations between plastic and total strain energy densities and number of cycles to failure are examined in order to predict the low cycle fatigue life of superalloy at different temperatures. The fatigue lives that are predicted by Coffin-Manson method and strain energy methods are compared with the measured fatigue lives at different temperatures.