为了评定测量结果的质量如何，要用测量不确定度来描述。ISO／IEC导则25指明实验室的每个证书或报告，必须包含有关评定校准或测试结果不确定度的说明，当我们给出测量结果时，应根据需要给出测量不确定度。本文从历史的角度简单介绍从测不准原理到测量不确定度的使用过程。192 In order to assess the quality of measurement results, the measurement uncertainty should be used to describe. ISO / IEC Guideline 25 indicates that each certificate or report in the laboratory must contain instructions for assessing the uncertainty of the calibration or test results and, when given, the measurement uncertainty should be given as needed. This article briefly introduces the process from uncertainty to measurement uncertainty from a historical point of view. 192