Abstract:Several methods such as the typical radiation data quality method, radiation data variation analysis, comparison of Sunshine duration between the manual and instrument measurements, and statistical analysis of solar global radiation and the other radiation are used to analyze the quality of the solar radiation data in the Baodi Meteorological Station (54525). The results show that during the test run, there was few missing data; 100% of global radiation and diffuse radiation and 85% of direct radiation passed the BSRN recommended QC tests and 100% net radiation passed the equipment observation threshold test; the solar radiation variation corresponds to reality; the manual and instrument sunshine duration measurements have good consistency; the linear changes among the global radiation, diffuse radiation, and the sunshine duration are the same with the classic study results. Overall, the data of this radiation observing system has high availability and can fulfill the daily business needs.