Abstract:According to the metrology characteristics of automatic weather stations, an automatic weather station mobile metrology system was designed. Field calibration of rain sensors and automatic weather station data collectors and on-site test of pressure, temperature, ground temperature, humidity , wind direction, wind speed, evaporation, sunshine, radiation sensors after which were laboratory calibrated. The mobile metrology system of automatic weather stations improved the efficiency of meteorological measurement calibration and ensured the normal operation of automatic weather stations and accurate and reliable data.