Abstract: With the increment of running time of running, the creep failure on pressure equipments which were under the high temperature environment could appear. Several pressure equipments, such as power station boiler, steam pipe, reformer tube of refinery, often suffered from creep damage under high temperature environment. To evaluate the life of the pressure equipments, it was highly significant to determine the damage level of the material. On the foundation of the domestic and foreign literature, this paper discussed the nondestructive method to evaluate the early stage failure of the pressure equipments caused by the creep damage. It is believed that the nondestructive evaluating, which focus on the creep damage of the early stage, is a significant topic in damage estimation and operational life prediction of the pressure equipments.