主要介绍了在JJF1134—2005《专用工作测力机校准规范》(以下简称规范)的不确定度评定过程中出现的若干问题。为了明确各个分量的定义及其公式的使用,我们对某些量的含义作了相应的解释并给出了具体的运算操作,对相关人员有参考价值。 This paper mainly introduces some problems that appear during the evaluation of the uncertainty of JJF1134-2005 “Working Standard for Special Purpose Working Dynamometer” (hereinafter referred to as “Specification”). In order to clarify the definition of each component and the use of its formula, we explain some of the meaning of the amount and give a specific operation, which has reference value for the relevant personnel.