The paper thoroughly introduces the temperature field and stress field on the dangerous cross - section of the rotor and the computing methods of life - loss and puts forward some viewpoints on the improvement of on - line life stat 文中详细介绍了转子危险截面上温度场、应力场和寿命损耗的计算方法,提出了有利于完善在线寿命统计的几个方面。