Abstract:Automatic weather station is an important part of meteorological observation system. When meteorological elements appeared abnormal in single automatic weather station,it could not be found in time to observe the abnormal data due to the lack of comparisons for the normal data of same elements. In order to improve the stability and quality of automatic observation,based on the assessment of operation efficiency for double automatic weather station,this paper establishes efficiency evaluation index and evaluates applied analysis combined with the observed data. And the analysis results are applied in the test run of double station business,which provides technical basis for operation feasibility of double automatic weather station.