Abstract: Based on historical records of meteorological stations in Sichuan Province, the status of 156 national stations, such as location, observation instruments, observation elements, surrounding obstacles, observation time system, observation time and observation class, are counted. The results showed that, From the station to 2016, the total number of 05 to 11 changes of the Sichuan meteorological station was 42588 times, and the average change of the station was 273 times, including 88 percent of the total variation of the observed elements and instruments. The observation instruments mainly occurred in 1953, 1960, 1980, 2003, 2013 and 2015. The variation trend of observation instruments is close to each other, and the variation of wind speed and wind direction observation instrument is the most frequent. A total of 132 stations were relocated in the province, the number of migration was 264 times, accounting for 85% of the total number of stations. At the beginning of the station, the migration stations were more, the migration distance was generally close, and after 2010, the migration times showed an upward trend, the distance was far away.