Abstract: The data of precipitation, temperature and sunshine in Pulandian area from December 1, 2019 to February 29, 2020 are analyzed, and the main climatic characteristics in winter in Pulandian area are compared, and the main climatic events are counted.The results show that the basic features of winter climate in pulandian in 2020 are that the average temperature is lower and higher than that in the whole year, the precipitation is significantly higher than that in the whole year, and the sunshine duration is less than that in the whole year. In the season, there were two obvious cold wave weather with low temperature, foggy weather and haze weather. High temperature,heavy precipitation and frequent fog and haze weather lead to slow growth of crops in facility agriculture and delay of the growing season by about 1 week, which brings adverse effects on transportation, Spring Festival travel and normal travel of people and threatens public health.