[en] International and domestic status of weather sampling technology is introduced. The hourly data of wind velocity, wind direction, atmospheric stability and precipitation at Tianwan (two years), Qinshan (one year and three years) and Huian (one year) nuclear power plant sites are statistically analyzed. In the same time, the suitability of weather sampling criterion of the U.S. MACCS program in China is also analysed. Based on the above factors, 5 candidates of weather sampling criterion suitable for the meteorological feature of China's coastal nuclear power plant are proposed. (authors)