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According to the verification regulation corresponding to temperature and rainfall of automatic meteorological stations, the rationality of the related indicators and rules is discussed. The purpose is to make verification regulation more perfect and reasonable. The error structure is analyzed, and the deduced theoretical formula is given from the characteristics of the instrument itself, combined with the actual work experiences. As a result, it is found that the temperature (ground temperature) and rainfall measuring performance requirements of the maximum permissible error and resolution are unreasonable. The maximum permissible errors of temperature and rainfall are obtained from the error formulas. Some suggestions about the determination of the indicators in the regulation are proposed.