Abstract:Based on the data from weather stations in Fushun, the climatic characters and causes of anomalous cold winter are analyzed. It is found that there is a cold period with the lowest temperature under -30℃ in the years of anomalous cold winter, as well as more snowfall and deep snow cover after global warming. By using the average ground temperature in deep level, sunspot activity, general circulation data, it can be found that the abnormal cold winter often occurs around the peak value year of macula activity, having a positive correlation with the average ground temperature at 0.8m below the surface during the prophase March-November, and the other properties are that the departure field of 500hPa geopotential height over Europe and Asia in northern hemisphere shows positive(negative) departure in west (east), the East Asia trough will establish steadily, and the general circulation appears as E pattern over Atlantic-Eurasia.