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Considering the comparison schemes, resources of reference values, methods of comparison result evaluation, and comparison reports in organizing and conducting comparison activities between laboratories in meteorological metrological verification institutes, the capabilities of the meteorological metrological laboratories are evaluated. The significance of the meteorological metrological verification institutes in professional metrological verification is discussed through comparison between meteorological metrological laboratories. Comparison is an important method used in measurement capability verification for laboratories. The atmospheric pressure quantity value comparison project carried out by the National Center for Meteorological Metrology, as the pilot laboratory, and organized by the meteorological branch technical committee of the National Pressure Metrological Technical Committee in 2011 is introduced. Eight laboratories were participated in the comparison project, and the star type method is used in the comparison. The normalized deviations of the 〖WTBX〗E〖WTBZ〗n value method are used for the evaluation of comparison results. The comparison results indicate that all the uncertainties of measurement results claimed by participating laboratories are reliable.