In view of the current situation of the authorization of measurement assessment and the research on measurement uncertainty, the calibration is carried out by referring to the corresponding regulations, and the analysis and evaluation of the uncertainty of the calibration results are carried out. As a provincial-level wind speed value transmission verification device, it is required to accept the standard assessment of the provincial market supervision department on a regular basis. Therefore, the uncertainty analysis of the standardized wind speed verification device will be used for the future assessment. This paper introduces the uncertainty evaluation method and calculation process of the wind speed verification device based on the establishment of mathematical model. The results show that the uncertainty of the verification device varies significantly under different wind speeds, which can not be generalized in practical application. The specific calculation should be based on the actual wind speed value.<br>
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